Latest / Stuff You Should Know / METI: Existential Threat? Probably Yes
Transcript
- 0:01Speaker 1: Welcome to Stuff you should know, a production of iHeartRadio.
- 0:11Speaker 2: Hey, and welcome to the podcast. I'm Josh and there's
- 0:13Speaker 2: Chuck and we're just doing what we can together, moddeling
- 0:17Speaker 2: through the both of us, and this is stuff you
- 0:19Speaker 2: should know.
- 0:22Speaker 1: Wow, Ed Waite has set up.
- 0:25Speaker 2: I wanted to make sure the bar was really low.
- 0:28Speaker 1: Well, hold on a second before we get going. We
- 0:32Speaker 1: don't often plug shows, but there's a new one on
- 0:34Speaker 1: our network called Inner Cosmos. Oh, yes, that we wanted
- 0:37Speaker 1: to plug. That sounds super awesome. You know, have you
- 0:39Speaker 1: ever heard of David Eagleman. He's a neuroscientist. Seems like
- 0:43Speaker 1: he might have come up before, but he's from Stanford.
- 0:46Speaker 1: He's a best selling author and he's you know, he
- 0:49Speaker 1: explores these insightful questions about modern brain science, how it
- 0:53Speaker 1: intersects our lives. It's just kind of write up stuff
- 0:55Speaker 1: you should know. Is ali definitely and I think the
- 0:58Speaker 1: listeners would really checking it out.
- 1:00Speaker 2: So go check it out.
- 1:01Speaker 1: What's it called again, It's called Inner Cosmos. It's awesome,
- 1:04Speaker 1: very nice. I'm excited about this one. I think this
- 1:07Speaker 1: may button up our sort of talking to aliens suite.
- 1:14Speaker 1: I think you're absolutely right, because we've done one on
- 1:17Speaker 1: SETI yes, which is called the Search for Estra Terrestrial
- 1:25Speaker 1: Jerk Intelligence.
- 1:27Speaker 2: Yeah.
- 1:28Speaker 1: Yeah, and that's go listen to that episode. It's great.
- 1:32Speaker 1: That's listening out for stuff out in the Great Beyond.
- 1:34Speaker 2: We did the Golden Records?
- 1:36Speaker 1: Did the Golden Records? What were those?
- 1:38Speaker 2: Those were Carl Sagan's Love Child where he basically put
- 1:45Speaker 2: snippets of world music, pictures of people from around the world.
- 1:51Speaker 2: I think there was like greetings on there. And also
- 1:55Speaker 2: then there were plaques. There was engravings of like human anatomy,
- 1:59Speaker 2: which is and I think our location in the universe too.
- 2:04Speaker 1: Okay, here's where we are and this is a.
- 2:07Speaker 2: Penis you think exactly. Check it out.
- 2:11Speaker 1: So now we're moving on to probably the culmination, which
- 2:14Speaker 1: is something called medi.
- 2:17Speaker 2: Oh wait, we did one more too, Yeah, No, we did. Okay,
- 2:20Speaker 2: you didn't want to talk about that?
- 2:22Speaker 1: Well, what was it? I can't remember.
- 2:24Speaker 2: Uh. I'll tell you, Chuck that there's a great name
- 2:27Speaker 2: for it, and uh I will share that with you directly.
- 2:31Speaker 2: But I just want to talk about what a great
- 2:33Speaker 2: name it was. I named it myself, yeah, and uh
- 2:36Speaker 2: it was just an all around good name.
- 2:39Speaker 1: It was kind of along these lines a little bit, right, man.
- 2:43Speaker 2: Oh, I got it how alien contact might work. Isn't
- 2:46Speaker 2: that a great name?
- 2:48Speaker 1: That's great?
- 2:50Speaker 2: So that was okay, that came before and then now
- 2:53Speaker 2: this one, and you're right, it's all buttoned up. We'll
- 2:55Speaker 2: never talk about it again.
- 2:57Speaker 1: Right, But like I said, now we're going to talk
- 2:59Speaker 1: about MEDI which also goes by active SETI, and that's
- 3:03Speaker 1: messaging to extra you know, ets intelligence. I'm not going
- 3:09Speaker 1: to try and say that word ever again on the show.
- 3:11Speaker 1: Oh always goop it up and you always snicker it's cute.
- 3:16Speaker 1: But let's get into it.
- 3:18Speaker 2: So, Chuck, you said that active SETI METI. They're one
- 3:21Speaker 2: and the same. But the whole purpose of them is
- 3:24Speaker 2: to not just sit around and listen passively for you know,
- 3:29Speaker 2: alien transmissions. That's what we've been doing forever. This is
- 3:32Speaker 2: something entirely different. It's proactive where we are now figuring
- 3:37Speaker 2: out how to shout out into the universe and send
- 3:41Speaker 2: those transmissions that we're hoping to find from alien civilizations
- 3:45Speaker 2: ourselves out there for other alien civilizations to find.
- 3:50Speaker 1: Yeah, and it turns out it's a pretty controversial thing.
- 3:52Speaker 1: I mean, when you first hear this idea, you're like,
- 3:55Speaker 1: if you're like me, you're like, oh cool, Like, great idea,
- 3:58Speaker 1: let's start sending messages out. But a lot of people
- 4:01Speaker 1: are saying, oh no, no, let's slow our role here, right,
- 4:04Speaker 1: and we'll get into all the pros and cons toward
- 4:07Speaker 1: the end. But there is an idea that capital g
- 4:10Speaker 1: capital s. The Great Silence is proof to some people
- 4:14Speaker 1: that hey, there is no one out here. We would
- 4:17Speaker 1: have heard something by now, the time that it would
- 4:20Speaker 1: take to colonize the Milky Way, you know, like it
- 4:24Speaker 1: would have happened by this point, and we would there
- 4:27Speaker 1: should be alien life everywhere if it was going to happen.
- 4:30Speaker 2: Yeah. I saw someone say that it should be as
- 4:32Speaker 2: obvious to us as the full moon is, Like.
- 4:35Speaker 1: The universe should be pretty obvious theeming.
- 4:37Speaker 2: With alien life, and yet it's not. That's the basis
- 4:39Speaker 2: of the Fermi paradox. And so it's also been called
- 4:42Speaker 2: the Great Silence. It's just weird, it doesn't make sense,
- 4:45Speaker 2: and so a lot of people say, well, that just
- 4:47Speaker 2: means we're alone in the universe. Other people there's a
- 4:51Speaker 2: SETI researcher, a legendary SETI researcher named Jill Tarter. She
- 4:55Speaker 2: said that that concluding that life, that the universe is
- 5:00Speaker 2: lifeless based on the small amount of searching we've done
- 5:04Speaker 2: is akin to dipping a glass of water in the
- 5:06Speaker 2: ocean and declaring the ocean lifeless after that.
- 5:09Speaker 1: Search, which is kind of the opposite. Like some people
- 5:12Speaker 1: are saying it would have happened by now, and she's saying,
- 5:15Speaker 1: how do you know we've been listening for you know
- 5:19Speaker 1: how long, like sixty something years? Yeah, And she's like,
- 5:22Speaker 1: that's nothing. So the idea of METI comes along, and
- 5:28Speaker 1: some people say that, you know, we may as well,
- 5:31Speaker 1: because we've been inadvertently bouncing, you know, since the advent
- 5:35Speaker 1: of satellites for communication and television and stuff like that. Right,
- 5:39Speaker 1: we've been sending signals out there inadvertently for years anyway,
- 5:44Speaker 1: So why not just put a little purpose behind it?
- 5:46Speaker 1: Or as our boss and founder of stuff you should know,
- 5:50Speaker 1: Connell Byrne would say, make it intentional.
- 5:54Speaker 2: Nice.
- 5:55Speaker 1: He'll always says that I love.
- 5:56Speaker 2: That his ears are burning right now.
- 5:59Speaker 1: It's a good later run a business with intention sure,
- 6:02Speaker 1: as opposed to being reactive.
- 6:04Speaker 2: Right exactly, So he'd be a medi supporter. It sounds
- 6:07Speaker 2: like we should ask him sometime So there's a there's
- 6:10Speaker 2: a thing. It's that whole idea that you were talking
- 6:13Speaker 2: about that we've been basically broadcasting our presence inadvertently anyway.
- 6:17Speaker 2: It's called the barn door argument, like we already left
- 6:19Speaker 2: the barn door open. You can't put the cow back.
- 6:22Speaker 1: In something like that cow has already seen the city exactly, Yeah,
- 6:26Speaker 1: can't take it back to the farm exactly, mixing metaphors.
- 6:29Speaker 2: No, but I think it works very well, and we'll
- 6:32Speaker 2: get into that a little more. But the answer from
- 6:36Speaker 2: a lot of people to that is is that's actually
- 6:38Speaker 2: not true. You can kind of disassemble it, and we'll
- 6:41Speaker 2: do that later. But the idea is that if we're
- 6:44Speaker 2: if we switch over to purposeful transmissions, directed transmissions, what
- 6:50Speaker 2: what con will say?
- 6:52Speaker 1: Intentional intentional transmissions.
- 6:55Speaker 2: That's a whole new ball of wax. And because we
- 6:58Speaker 2: don't know what's out there, we can't say that what's
- 7:02Speaker 2: out there wouldn't come harm us if we caught its attention.
- 7:05Speaker 2: So because we don't know enough to say either way yet,
- 7:09Speaker 2: we should not do that.
- 7:11Speaker 1: Yeah, or at the very least, and again this is
- 7:14Speaker 1: a preamble to what we're going to dig into more later.
- 7:18Speaker 1: But at the very least, let's like slow our role
- 7:20Speaker 1: here and take our time and not let doritos do it.
- 7:25Speaker 2: Right, Yeah, that'll make happen at more sense in a minute.
- 7:29Speaker 2: But Yeah, there's something in risk management called the cautionary principle,
- 7:34Speaker 2: and it's basically saying, like, if if an activity or
- 7:37Speaker 2: an action could cause tremendous harm and you don't know
- 7:41Speaker 2: enough about it to say that it won't, either do
- 7:45Speaker 2: more research and figure out ways to make it safer,
- 7:48Speaker 2: or don't do it at all. And that's the argument principle. Yeah,
- 7:51Speaker 2: that's a lot. That's what a lot of people use
- 7:53Speaker 2: to argue against many we don't know enough right now.
- 7:56Speaker 2: We're not saying don't do it. It's a cool, worthy pursuit,
- 7:59Speaker 2: just don't do it the way that you guys are
- 8:01Speaker 2: suggesting right now, which is completely off the cuff and
- 8:06Speaker 2: basically a group of rogue people are trying to do
- 8:09Speaker 2: it solo for the whole world.
- 8:12Speaker 1: Well, I think that's a nice segue, speaking of good
- 8:16Speaker 1: and bad ideas, to go back in time to the
- 8:19Speaker 1: fact to the idea that this isn't a new idea.
- 8:21Speaker 1: We've been thinking about this as humans for a long
- 8:25Speaker 1: long time, dating back to the early nineteenth century, there
- 8:29Speaker 1: was a German mathematician named and these weren't crackpots. These
- 8:32Speaker 1: were pretty respected people in their fields. Carl Friedrich Gauss.
- 8:37Speaker 1: He said, here's what we should do. Why don't we
- 8:40Speaker 1: cut down a bunch of the Siberian forest. Why don't
- 8:43Speaker 1: we plant wheat fields kind of like crop circles, but
- 8:45Speaker 1: in the shape of big right triangles. To just let people,
- 8:51Speaker 1: your people, let these ets see it. If they can
- 8:54Speaker 1: see it, at least they'll know that we understand the
- 8:57Speaker 1: Pythagorean theorem. Then about so, let's we'll get a bunch
- 9:01Speaker 1: of free wheat out of it. Wheat not weed.
- 9:04Speaker 2: I said, wheat.
- 9:05Speaker 1: Oh okay, they said weed.
- 9:08Speaker 2: I can't see Carl Friedrich Gouss calling it weed.
- 9:11Speaker 1: That'd be funny, though, if they just planted a huge
- 9:13Speaker 1: marijuana fields. They're like, you might as well kill two
- 9:15Speaker 1: birds here.
- 9:16Speaker 2: That initiative might have happened back then.
- 9:19Speaker 1: So then a few decades later in Austrian astronomery, name
- 9:22Speaker 1: named Joseph von Littrew said, how about this, you like
- 9:27Speaker 1: wacky ideas, why don't we dig big twenty mile wide
- 9:31Speaker 1: trenches that are in different geometric shapes and fill them
- 9:34Speaker 1: with kerosene and set them on fire.
- 9:36Speaker 2: It's a little you don't have anything but smoke inhalation
- 9:40Speaker 2: to show for it after that's done. At least with
- 9:42Speaker 2: Gouss's idea, you had wheat or weed, depending on what
- 9:45Speaker 2: you grew.
- 9:47Speaker 1: But these were sort of the early ideas of how
- 9:49Speaker 1: we could potentially send a message, you know, obviously before
- 9:52Speaker 1: the advent of radio telescopes.
- 9:54Speaker 2: Yes, and they were dumb, dumb ideas, but it does
- 9:57Speaker 2: show that we were thinking about this. We we want
- 10:00Speaker 2: to contact other civilizations that may be out there. Sure
- 10:05Speaker 2: there were I'm sure other proposals that didn't quite make
- 10:10Speaker 2: the historical cut. But if we kind of flash forward
- 10:13Speaker 2: to November of nineteen sixty two, we come to probably
- 10:17Speaker 2: what you could call the first medi broadcast. It was
- 10:21Speaker 2: Soviet astronomers at a radar station in the Crimea. I
- 10:26Speaker 2: think it's one that's still there today called evepteriea a
- 10:31Speaker 2: seventy millimeters or seventy meter telescope. Seventy millimeters wouldn't be
- 10:35Speaker 2: very powerful, baby scope, but back in nineteen sixty two
- 10:39Speaker 2: they broadcast in morse code a three word message to
- 10:43Speaker 2: a star that was about two thousand light years away,
- 10:46Speaker 2: and the message said world. You could also interpret the
- 10:50Speaker 2: word is peace. Lenin they're being very sick of fan
- 10:53Speaker 2: it USSR. They're being jingoistic.
- 11:00Speaker 1: About ten years later, Americans and Soviets got together, or
- 11:03Speaker 1: at least the scientists did, and they said, all right,
- 11:06Speaker 1: let's at least get together and start to brainstorm how
- 11:08Speaker 1: we might go about this. And they invited Frank Drake
- 11:12Speaker 1: of the famous Drake equation and Carl Sagan famous for
- 11:16Speaker 1: being Carl Sagan. Sure Neil deGrasse Tyson wanted to go,
- 11:20Speaker 1: but they said, you're only thirteen years old or so,
- 11:24Speaker 1: just once you just concentrate on, you know, getting a date.
- 11:28Speaker 2: Maybe just keep at it, buddy, just stay that kid.
- 11:31Speaker 1: He's like, but I want to go. And then James
- 11:36Speaker 1: Elliott was an astronomer that was there and he had
- 11:38Speaker 1: the idea and sort of another two birds one stone.
- 11:41Speaker 1: He said, we can get rid of all of our
- 11:42Speaker 1: nuclear warheads in the world if we just take him
- 11:45Speaker 1: to the far side of the moon and then blow
- 11:48Speaker 1: them up and that'll be detectable from one hundred and
- 11:51Speaker 1: ninety light years away. And everyone was like, yeah, not
- 11:54Speaker 1: a great idea.
- 11:55Speaker 2: Yeah, you can kill two birds with one stone, but
- 11:56Speaker 2: you also lose the moon in the bargain. So no,
- 11:59Speaker 2: it was a very good idea at all. But I
- 12:02Speaker 2: think at that no, that happened before I was going
- 12:07Speaker 2: to say, at that meeting, Frank Drake came up with
- 12:09Speaker 2: the Drake equation, which is basically a formula to figure
- 12:13Speaker 2: out the chances of other intelligent life out there in
- 12:16Speaker 2: the universe. I think that was more like nineteen sixty
- 12:20Speaker 2: or something like that. This is well into the seventies,
- 12:23Speaker 2: so Drake was already legendary, at least as legendary as Sagan,
- 12:27Speaker 2: and those two actually teamed up in nineteen seventy four
- 12:31Speaker 2: and they got together and I guess you could call
- 12:34Speaker 2: this probably the first at least Western or American medi transmission.
- 12:39Speaker 2: It is called the Aricibo Message.
- 12:42Speaker 1: Yeah, and that was a little more and you'll see,
- 12:45Speaker 1: as the case with a couple of these early attempts,
- 12:47Speaker 1: it was less like hey, I really think this is
- 12:50Speaker 1: going to reach somebody, and a little more like, hey,
- 12:52Speaker 1: look how powerful our toys are these days. And that
- 12:56Speaker 1: was the case here with a radio telescope, the Arasibo
- 12:59Speaker 1: telescope in Puerto Rico, and they just kind of wanted
- 13:03Speaker 1: to show it off, so they aimed at at the
- 13:05Speaker 1: M thirteen cluster, about three hundred thousand stars twenty five
- 13:09Speaker 1: thousand light years away this time, and considering the Soviet
- 13:13Speaker 1: when twelve years earlier it was two thousand light years away.
- 13:16Speaker 1: They had you know, this is really getting out there
- 13:18Speaker 1: at this point.
- 13:19Speaker 2: Right, And the message they beamed was usay you yes, hey.
- 13:23Speaker 2: Actually the message they beamed was pretty remarkable, especially for
- 13:27Speaker 2: its time.
- 13:28Speaker 1: So they said gerald forward, but who really.
- 13:33Speaker 2: They use binary code ones and zeros, right, and they
- 13:37Speaker 2: represented ones and zeros same thing as light and dark,
- 13:41Speaker 2: the presence of something, the absence of something, just two
- 13:44Speaker 2: sides to one coin. They chose that pretty ingeniously because
- 13:48Speaker 2: you can make a really good case that math, algebra, trigonometry, geometry,
- 13:54Speaker 2: all these are human constructs to understand math, but they're
- 13:58Speaker 2: not necessarily a universal life language. You can make a
- 14:01Speaker 2: pretty good case that binary is a universal language, that
- 14:05Speaker 2: there's at base such a thing as something and not
- 14:09Speaker 2: something everywhere in the universe, and that's what they use
- 14:13Speaker 2: to transmit this message. And still today it's pretty much
- 14:16Speaker 2: agreed upon. If you're going to craft yourself a mety message.
- 14:19Speaker 2: You're probably gonna want to use binary because it's it's
- 14:22Speaker 2: probably the language of the universe.
- 14:25Speaker 1: Yeah, that's I mean, that's kind of a really interesting thing.
- 14:27Speaker 1: And I think we talked about that a lot in
- 14:31Speaker 1: that third episode that you had to search.
- 14:34Speaker 2: For how alien contact might work.
- 14:37Speaker 1: Yeah, like, can we even wrap our brains around the
- 14:40Speaker 1: fact that they may not even like understand what our
- 14:46Speaker 1: three dimensions are, much less what languages or whatever, you know.
- 14:50Speaker 2: And I mean we also kind of tangentially got into
- 14:52Speaker 2: that and the Nuclear Semiotics episode. Oh yea, it's even
- 14:56Speaker 2: talking to other humans ten thousand years in the future
- 14:59Speaker 2: is virtually impossible. We're talking about like entirely different types
- 15:03Speaker 2: of beings conceivably, So it's a lot to kind of
- 15:07Speaker 2: take into consideration when you're crafting one of those messages.
- 15:10Speaker 1: Yeah, for sure. So Sagan goes on, if we're kind
- 15:13Speaker 1: of going on a timeline here in seventy seven to
- 15:16Speaker 1: launch those Golden Records that we have a really good
- 15:19Speaker 1: episode on. You should check that out. But again, this
- 15:22Speaker 1: was another thing where it wasn't showing off, but it
- 15:25Speaker 1: was kind of a kind of a publicity thing because
- 15:28Speaker 1: the voyager one is really slow, only goes about thirty
- 15:31Speaker 1: eight thousand miles an hour, and Sagan was even like,
- 15:34Speaker 1: this is not going to get very far out there.
- 15:37Speaker 2: No, but it was I think what Sagan was doing
- 15:41Speaker 2: at the time, I don't remember. I'm sure we covered
- 15:43Speaker 2: it in the Golden Records episode and we did an
- 15:45Speaker 2: episode in Sagan too himself that he was probably just
- 15:50Speaker 2: trying to inspire humans to start thinking beyond Earth.
- 15:54Speaker 1: Sure, because there was just virtually.
- 15:56Speaker 2: No chance whatsoever that any civilist was going to encounter
- 16:01Speaker 2: this one tiny, slow moving space probe. It's possible that
- 16:06Speaker 2: they could have noticed it, and we're tracking it, but
- 16:08Speaker 2: the chances are very low. So I think he was
- 16:10Speaker 2: trying to keep get people talking about this kind of thing.
- 16:13Speaker 2: And that's still a bit of the spirit of medi today,
- 16:16Speaker 2: to get people talking about how to contact other people,
- 16:21Speaker 2: what we want to say, and in doing that we
- 16:23Speaker 2: kind of examine our own values, like we strip away
- 16:25Speaker 2: all the now that's not really as important as this,
- 16:28Speaker 2: like what's the basic things that make us humans that
- 16:31Speaker 2: we would want to express to some non human intelligences
- 16:35Speaker 2: about ourselves to get across who we are.
- 16:38Speaker 1: Yeah, totally. So maybe before we take a break will
- 16:43Speaker 1: zip through these last attempts because there are a handful
- 16:46Speaker 1: of other ones sort of leading up to where we
- 16:48Speaker 1: are today. There was another Russian. This is a radio engineer,
- 16:53Speaker 1: big medi guy named Alexander Zeitsef. He initiated for broadcasts
- 16:59Speaker 1: one ninety nine, two thousand and one, two thousand and three,
- 17:03Speaker 1: in two thousand and eight using a Ukrainian radio telescope.
- 17:07Speaker 1: And as with the others, you know, some photos, some music,
- 17:12Speaker 1: something called the interstellar Rosetta Stone, which is another attempt
- 17:17Speaker 1: like here's our math and physics and chemistry and biology
- 17:20Speaker 1: here on Earth, then maybe you can understand this. NASA
- 17:25Speaker 1: did another publicity stunt when when they beamed the Beatles
- 17:28Speaker 1: song across the universe toward Polaris in two thousand and eight.
- 17:34Speaker 2: They I can't remember if they were criticized for that
- 17:37Speaker 2: or not. Yeah. There was also you mentioned Dorito's. Dorito's
- 17:42Speaker 2: held a contest in the UK to come up with
- 17:46Speaker 2: a thirty second ad that got across humanity, and the
- 17:51Speaker 2: winning entry was a bunch of chips that escaped from
- 17:55Speaker 2: a bag and sacrificed one of their own to the
- 17:58Speaker 2: god of Salsa. Dorito's is like yeah, nailed it. That's
- 18:02Speaker 2: exactly all of humanity. We do that all the time.
- 18:04Speaker 2: And they transmitted that that thirty second commercial over and
- 18:08Speaker 2: over for six hours. Eh, boy at a star called
- 18:12Speaker 2: forty seven ursa majoris, which is forty nine light years
- 18:16Speaker 2: away or forty five light years away.
- 18:18Speaker 1: Yeah.
- 18:19Speaker 2: Can you imagine getting six hours of the same Dorito's
- 18:21Speaker 2: commercial over and over again and not being like, I'm
- 18:24Speaker 2: gonna invade that place. This is just too annoying.
- 18:28Speaker 1: And then should we even mentioned this last guy? Uh? Yeah,
- 18:34Speaker 1: all right, why not. There's an artist named Joe Davis
- 18:38Speaker 1: who has made a couple of interstellar transmissions. One was
- 18:42Speaker 1: called Poetica Vaginal and he recorded the vaginal contractions of
- 18:48Speaker 1: ballet dancers and broadcasts those into outer space in nineteen
- 18:53Speaker 1: eighty five. And then I guess he I'm curious what
- 18:57Speaker 1: he did between eighty five and two thousand and nine
- 19:01Speaker 1: if that's what he did in eighty five. But finally
- 19:03Speaker 1: in two thousand and nine he did it again, except
- 19:05Speaker 1: this time he was like, let me just send out
- 19:07Speaker 1: the genetic code for a plant enzyme that's essential for photosynthesis.
- 19:12Speaker 1: That makes a little more sense.
- 19:13Speaker 2: So that's basically where we are today, there's been a
- 19:15Speaker 2: handful of basically solo attempts of people who have friends
- 19:20Speaker 2: that work at Radar Telescope arras who beamed messages for
- 19:25Speaker 2: one reason or another, usually artistic or commercial.
- 19:29Speaker 1: Yeah, speaking of commercial, Yeah, God, look at that. I
- 19:33Speaker 1: just stepped all over it too. We'll be right back, Okay,
- 20:03Speaker 1: So we are back. We are catching up to the future,
- 20:07Speaker 1: and we're going to start with a man named Douglas
- 20:11Speaker 1: vakoch vakok I think it's fake koch veakoch v a
- 20:16Speaker 1: koc h. He's a SETI guy, and he was there
- 20:20Speaker 1: for about sixteen years where he worked his way up
- 20:22Speaker 1: to the director of Interstellar Message Composition, which is you
- 20:27Speaker 1: know exactly you know where you want to be if
- 20:30Speaker 1: you want to send messages out. And he kept saying
- 20:32Speaker 1: like SETI, come on, let's do this, let's get on it,
- 20:34Speaker 1: let's send messages out. And they just folded their arms
- 20:37Speaker 1: and shook their head. Now and he said, fine, I'm
- 20:40Speaker 1: going to leave and I'm going to go start my
- 20:42Speaker 1: own little group called Mehdi. And that's where Mehdi was born.
- 20:45Speaker 2: Yeah, and SETI also refused to go the opposite way
- 20:49Speaker 2: and outright ban messaging extraterrestrials. And so there were some
- 20:55Speaker 2: like high level critics of Mehdi who departed SETI. So
- 20:58Speaker 2: SETI was just shedding people left and right for a
- 21:00Speaker 2: little while over this topic. And it actually goes to
- 21:03Speaker 2: show you like in scientific circles, especially astronomy circles, it's
- 21:09Speaker 2: a big deal. It's a really heated discussion, like people
- 21:12Speaker 2: will start screaming at each other over this. Oh really, yeah,
- 21:14Speaker 2: it's it's yeah, there's a lot of pettiness and backstabbing
- 21:18Speaker 2: and s talking. It's it's it's strange.
- 21:23Speaker 1: Science fight, science fight.
- 21:25Speaker 2: Yeah. And I'm not saying it's strange that it's controversial.
- 21:28Speaker 2: I'm saying the way that these scientists carry out the
- 21:31Speaker 2: debate and arguments is strange.
- 21:34Speaker 1: Right, It's it's uh, they don't they don't thumb wrestle
- 21:37Speaker 1: like any old dates, right, or what is it? Thumb war?
- 21:42Speaker 2: Yeah? One, two, three, four, Yeah, we.
- 21:45Speaker 1: Always called it thumb wrestling. Though this whole thumbre thing
- 21:47Speaker 1: is just that's what the kids are doing these days.
- 21:49Speaker 2: I think it's just you say thumb war with the rhyme,
- 21:53Speaker 2: but I think you still call it thumb wrestling. That
- 21:55Speaker 2: was my experience, and that's typically the correct one.
- 21:58Speaker 1: All right, very important work we're doing here, the thumb
- 22:03Speaker 1: wrestling thing. So Mehdi has one. They have actually tried
- 22:08Speaker 1: this one time in two thouy seventeen. They did a
- 22:15Speaker 1: one short series of transmissions. They also use the ones
- 22:18Speaker 1: and zeros technique because you said it was best, it
- 22:21Speaker 1: is and they said, Josh said it was best, so
- 22:23Speaker 1: let's go with that. And again in it included, you know,
- 22:27Speaker 1: some basic numbers. It included some basic math, a little
- 22:30Speaker 1: bit of trigonometry, like, hey, here's how electromagnetic waves work.
- 22:35Speaker 1: Here's a little bit of music that might suit your fancy.
- 22:38Speaker 1: And here's a clock. This is just going to count
- 22:41Speaker 1: how long it's been traveling.
- 22:42Speaker 2: I could not, for the life of me, figure out
- 22:45Speaker 2: how they would have done that. I saw, yeah, I
- 22:47Speaker 2: saw that. There was another one called the Beacon in
- 22:50Speaker 2: the Galaxy, which you'll talk about later. It has a
- 22:53Speaker 2: time stamp saying when are they proposed as a time
- 22:57Speaker 2: stamp saying when the message was sent? But I don't
- 23:00Speaker 2: understand a countdown clock. It doesn't make any sense.
- 23:04Speaker 1: I don't think it's a countdown I think it's just
- 23:05Speaker 1: a counting clock either.
- 23:07Speaker 2: Way, how would you do that with binary ones and zeros?
- 23:13Speaker 1: Oh, I don't know. I just kind of figured the
- 23:14Speaker 1: clock was separate.
- 23:16Speaker 2: I really don't understand. I looked all over for it.
- 23:20Speaker 2: I did find that aw Techer had a little ten
- 23:22Speaker 2: second snippet aboard one of those transmissions is pretty pretty
- 23:26Speaker 2: good Awtecher there. I don't know that German, Austria and
- 23:30Speaker 2: I don't maybe British Scottish, I don't remember. But anyway,
- 23:34Speaker 2: they're like a electronic duo that's been around for a
- 23:37Speaker 2: long time. It's really really good, you know, kind of weird.
- 23:41Speaker 1: Did they wear helmets so you can't see their faces?
- 23:43Speaker 2: No, nothing like that. They dressed kind of normcore and
- 23:46Speaker 2: they're just a couple of normal guys. But their their
- 23:49Speaker 2: music is really it can be really like a tonal
- 23:54Speaker 2: and hard to listen to, and then at other times
- 23:57Speaker 2: it's like the coolest music you've ever heard in your life.
- 24:00Speaker 2: So if you go listen to Autecher after this and
- 24:03Speaker 2: the first thing you hear, you're like, what is this?
- 24:06Speaker 2: I don't like this at all. Go on to the
- 24:09Speaker 2: next track and see what.
- 24:10Speaker 1: Okay, I'll have to check that out. So that one
- 24:15Speaker 1: message that they sent in twenty seventeen, was blasted out
- 24:18Speaker 1: to an exoplanet and we'll get to you know, sort
- 24:22Speaker 1: of the thinking these days is to send them toward exoplants.
- 24:25Speaker 1: We'll get more into that in a sect. But it's
- 24:26Speaker 1: called g J two seventy three B and that's about
- 24:31Speaker 1: twelve light years from Earth and if someone there gets
- 24:35Speaker 1: it or something there gets it, we would get a
- 24:37Speaker 1: message back potentially in twenty forty two.
- 24:41Speaker 2: So that was the only one that MEDI sent so far.
- 24:44Speaker 2: Like the MEDI Institute right there's the NASA's Jet Propulsion
- 24:50Speaker 2: Laboratory is working on one that I mentioned, the beacon
- 24:52Speaker 2: in the galaxy, and it's it kind of follows in
- 24:57Speaker 2: the footsteps of messages going all the way back to
- 25:00Speaker 2: the Aricibo message, where it's saying like, hey, this is
- 25:03Speaker 2: math and this is science and check it out. But
- 25:07Speaker 2: it also is kind of departing from other messages and
- 25:10Speaker 2: that they're basically saying here's where we are. Come visit
- 25:14Speaker 2: us if you want to get in touch. And that
- 25:18Speaker 2: kind of thing makes some people a little nervous, especially Chuck,
- 25:22Speaker 2: because we've gotten so much better at finding exoplanets potentially
- 25:29Speaker 2: habitable planets outside of our solar system that now we
- 25:34Speaker 2: can kind of direct messages much more purposefully than we
- 25:38Speaker 2: could in the past, and so the chance of an
- 25:41Speaker 2: extraterrestrial intelligence, if there is one out there, actually receiving this,
- 25:47Speaker 2: has increased tremendously if we do start sending messages directed
- 25:53Speaker 2: toward exoplanets.
- 25:55Speaker 1: Yeah, and they've narrowed it down, narrowed it down to
- 25:58Speaker 1: about twenty exoplanets right now out of the roughly fifty
- 26:02Speaker 1: three hundred that we have confirmed exists that are in
- 26:06Speaker 1: what's called the Goldilocks zone, which I know we've talked
- 26:08Speaker 1: about more than once, and that's the area where they
- 26:11Speaker 1: think that you know, like Goldilocks. It's not too warm,
- 26:14Speaker 1: it's not too cold, there's probably surface water and an atmosphere.
- 26:19Speaker 1: You may be near a sun like star, all of
- 26:23Speaker 1: this to say more easily, you're probably a lot like
- 26:26Speaker 1: Earth and therefore have a greater chance of having life.
- 26:31Speaker 1: So let's shoot something your way.
- 26:33Speaker 2: Right, So a lot of people are saying, like, no,
- 26:36Speaker 2: this is not a good idea. It wasn't a good
- 26:39Speaker 2: idea before. Apparently, right after the Aricibo message went out,
- 26:44Speaker 2: Frank Drake was immediately criticized for doing that that was
- 26:47Speaker 2: very reckless. This is nineteen seventy four that he did that.
- 26:52Speaker 2: Every time somebody sends just a transmission out for fun
- 26:55Speaker 2: or kicks or as a Dorido's commercial, or even like
- 26:58Speaker 2: as a serious metisage, it gets condemned widely by people
- 27:03Speaker 2: who are saying you should not be doing this. You're
- 27:06Speaker 2: speaking for the entire world who told you you could
- 27:09Speaker 2: do that.
- 27:10Speaker 1: Yeah.
- 27:10Speaker 2: And then secondly, we as we already talked about, this
- 27:13Speaker 2: is a potentially very dangerous thing. It's an existential risk.
- 27:17Speaker 2: Like it's possible that if you caught the attention of
- 27:20Speaker 2: another civilization and they came to see us, by definition,
- 27:23Speaker 2: if they can come to see us or in any
- 27:26Speaker 2: way interact with us physically, they're just so much more
- 27:30Speaker 2: advanced than us that it does risk completely wiping us out.
- 27:35Speaker 1: Yeah, and I guess you know, we're at the point
- 27:38Speaker 1: where we can talk about criticisms and then what people
- 27:41Speaker 1: respond to the criticisms, and then the pros and cons.
- 27:45Speaker 1: There are three major criticisms. We're going to save the
- 27:47Speaker 1: big Daddy for the end, But the first couple are
- 27:53Speaker 1: you know, kind of like we mentioned earlier, said he's
- 27:55Speaker 1: been around for about sixty years, and they haven't been
- 27:59Speaker 1: super well fun over that time, so they haven't even
- 28:02Speaker 1: reached the potential of what SETI could be. Yet. There's
- 28:05Speaker 1: a Russian billion billionaire name Yuri Milner who has said,
- 28:10Speaker 1: I'll give you guys one hundred million dollars over ten
- 28:14Speaker 1: year period. And by the end of that period, it's
- 28:17Speaker 1: called the Breakthrough Listen Initiative. We should be able to
- 28:20Speaker 1: scan ten times more sky than we can now using
- 28:23Speaker 1: telescopes that are about fifty times more sensitive.
- 28:25Speaker 2: Hey, get this, and I saw real quick, Chuck. I
- 28:28Speaker 2: thought that the sensitivity is so much that they would
- 28:32Speaker 2: be able to detect a one hundred watt laser same
- 28:34Speaker 2: as about one hundred watt light bulb five light years away. Wow,
- 28:40Speaker 2: that's how much they're stepping up SETI all of a sudden,
- 28:43Speaker 2: thanks to Yuri Milner.
- 28:45Speaker 1: That's so, I thought you were going to say something
- 28:46Speaker 1: about like an alien fart.
- 28:48Speaker 2: That's essentially that. Okay, all right, let's not mince words here.
- 28:52Speaker 2: That's one and the same.
- 28:54Speaker 1: I thought that's where you're headed. So yeah, that's one
- 28:57Speaker 1: of the big arguments is SETI is in his and see,
- 29:00Speaker 1: let's just slow our role here and just keep listening.
- 29:03Speaker 2: Right, And that doesn't mean, also Chuck, that we can't
- 29:06Speaker 2: start talking about crafting messages. Sure, we just should not
- 29:10Speaker 2: start shouting out into the void. Yes, the next one
- 29:15Speaker 2: is that I kind of touched on it, but MEHDI
- 29:17Speaker 2: is considered unauthorized diplomacy. And that's John Gertz, who was
- 29:22Speaker 2: a former chair of SETI and a big critic of Mehdi.
- 29:28Speaker 2: He basically called it that unauthorized diplomacy. And if you
- 29:31Speaker 2: think back to our How Alien Contact Might Work episode,
- 29:36Speaker 2: didn't even have to look it up that time. Nice.
- 29:39Speaker 2: There was something that we talked about called the Declaration
- 29:42Speaker 2: of Principles for Activities Following the Detection of Extraterrestrial Intelligence,
- 29:47Speaker 2: and it basically guides scientists in how to respond if
- 29:52Speaker 2: we ever do receive an alien message. And the guidance
- 29:56Speaker 2: is don't respond. It's not up to you. We need
- 29:59Speaker 2: to form a glow will consensus before we ever say anything.
- 30:03Speaker 2: And so medi critics are saying, if if we have
- 30:06Speaker 2: that as a as a guide line, as a guardrail
- 30:14Speaker 2: after we receive a message, shouldn't that count like doubly
- 30:17Speaker 2: and crafting a message and sending it out initially like
- 30:21Speaker 2: as a first first message and yeah, and many proponents
- 30:25Speaker 2: is shut up.
- 30:27Speaker 1: Well they kind of do, but Gertzy series about it
- 30:29Speaker 1: and he's so serious. He's like, there should be international
- 30:32Speaker 1: laws drawn up around this and it should all be regulated.
- 30:36Speaker 1: And if you do something like this Dorrito's or Craigslist.
- 30:40Speaker 1: We didn't even mention craiglist, craigslisten a message out. Yeah,
- 30:44Speaker 1: you should be prosecuted in the Hague, get the International
- 30:48Speaker 1: Court of Justice. And I think in the two thousands
- 30:51Speaker 1: there were a couple of dozen scientists that all got
- 30:54Speaker 1: on board signed a position statement against Mehti and basically
- 30:59Speaker 1: said that you know, everyone's got to get together and
- 31:02Speaker 1: agree on this. You can't just if we can't just
- 31:05Speaker 1: answer an email, then you shouldn't send the email to
- 31:08Speaker 1: begin with.
- 31:09Speaker 2: Sure, it's a great point, it's a great great analogy there.
- 31:13Speaker 1: Thanks. Should we take a break.
- 31:15Speaker 2: Oh yeah, let's take a break. I forgot we hadn't
- 31:16Speaker 2: taken our second one.
- 31:18Speaker 1: All right, we'll take our second break and we'll talk
- 31:19Speaker 1: about what Mehdi says right after this.
- 31:47Speaker 2: Okay, So Mehdi says, all right, we hear you. I
- 31:49Speaker 2: will even grant you that there is a slight risk
- 31:52Speaker 2: to this at vanishingly small risk. But we have some
- 31:58Speaker 2: counter arguments to all of your bs. So the number
- 32:00Speaker 2: one is we feel that ETI is out there. Other
- 32:05Speaker 2: intelligent civilizations are actually waiting for us to signal them
- 32:10Speaker 2: that if there are extraterrestrial intelligences out there, maybe they're
- 32:15Speaker 2: all being quiet. And this explains the great silence, because
- 32:19Speaker 2: there's some sort of agreement among in regalactic civilizations not
- 32:24Speaker 2: to disturb up and coming ones before they say that
- 32:28Speaker 2: they're ready to be contacted. And they said, what we
- 32:32Speaker 2: want to do is send that message that we're ready.
- 32:36Speaker 1: Yeah, and some people saying we are ready, some people
- 32:39Speaker 1: saying no, we're not ready, We're not close to ready.
- 32:44Speaker 1: And also like if we're working on the prim minis,
- 32:48Speaker 1: they don't say priminis the premise that it's a danger,
- 32:53Speaker 1: then like no one's ever going to say anything to anybody,
- 32:55Speaker 1: And then if it turns out there wasn't a danger,
- 32:57Speaker 1: then we've just what have we been doing this whole time?
- 32:59Speaker 2: Yeah, we're all going to live and die as civilizations
- 33:02Speaker 2: without ever being in touch with one another. And what
- 33:04Speaker 2: kind of a tragedy.
- 33:05Speaker 1: Would that be? That'd be a pretty big tragedy.
- 33:08Speaker 2: Another one is what we talked about earlier, that we've
- 33:09Speaker 2: already made our presence known.
- 33:11Speaker 1: Right, Yeah, And we've been blasting out television through space
- 33:17Speaker 1: for since nineteen fifty one with I Love Lucy, and
- 33:21Speaker 1: that message I Love Lucy is seventy two light years
- 33:24Speaker 1: away from Earth by now, and we've been like, if
- 33:27Speaker 1: we can send the Real Housewives shows into outer space,
- 33:31Speaker 1: then surely we should be a little more intentional and
- 33:34Speaker 1: send out something else that actually shows our intelligence.
- 33:38Speaker 2: Andy Cohen just said, hey, well you are right, you're
- 33:42Speaker 2: not wrong.
- 33:43Speaker 1: Watch what happens.
- 33:45Speaker 2: So I said that people can really kind of easily disassemble.
- 33:50Speaker 2: This argument is really especially coming from astronomers and astrophysicists.
- 33:55Speaker 2: This is a really glib argument. This is an argument
- 34:00Speaker 2: that's crafted to fool dummies like you and me. Right,
- 34:04Speaker 2: if you really dig into it, those radio and TV
- 34:07Speaker 2: transmissions are so degraded when they escape out into space
- 34:12Speaker 2: that you, like you just couldn't pick them up. You'd
- 34:15Speaker 2: have to be in our backyard to pick up any
- 34:17Speaker 2: of that, and a right and know where it came from.
- 34:21Speaker 2: If you were in our backyard, the further away you are,
- 34:24Speaker 2: the less chance you have of picking up not just
- 34:28Speaker 2: like a I Love Lucy transmission, but all of Earth's
- 34:31Speaker 2: electromagnetic signature that we're leaking out into space at all times,
- 34:37Speaker 2: you have such a small chance of picking Earth up
- 34:42Speaker 2: that it's it's it's actually mind boggling. John Gertz just
- 34:46Speaker 2: gave an example of a space alien space telescope that
- 34:51Speaker 2: was five hundred and fifty astronomical units away. That's zero
- 34:54Speaker 2: point eight percent the distance of a light year, So
- 34:57Speaker 2: it's actually relatively very close that this telescope would have
- 35:02Speaker 2: to be positioned so that eventually it was going to
- 35:06Speaker 2: get Earth right in its crosshairs, and when it finally did,
- 35:10Speaker 2: it would have a three to four second opportunity to
- 35:13Speaker 2: pick Earth up every thirteen thousand years. So the idea
- 35:17Speaker 2: that we're just shouting out into the universe that we're
- 35:21Speaker 2: here just from being and broadcasting and emitting electro magneticism,
- 35:28Speaker 2: Oh God, I gotta rephrase that.
- 35:30Speaker 1: You did it.
- 35:31Speaker 2: I don't think that's a word though. Sure Anyway, it's
- 35:35Speaker 2: a not a valid argument.
- 35:40Speaker 1: Although wouldn't that be funny if aliens finally came down
- 35:44Speaker 1: and they just met all of us and they all
- 35:46Speaker 1: went lucy right, just called everything Lucy.
- 35:50Speaker 2: That's like, oh, what was it? I think it was.
- 35:56Speaker 2: There was some I want to say Futurama where there
- 35:59Speaker 2: was like a race that had picked up Ally McNeil,
- 36:04Speaker 2: and they wanted to know what happened, and they showed
- 36:08Speaker 2: up like trying to find what happened at the at
- 36:10Speaker 2: the end, it was pretty good.
- 36:12Speaker 1: That's funny. They would be very surprised to learn that
- 36:14Speaker 1: she married Han Solo.
- 36:15Speaker 2: Well they yeah, they would. It's still surprising, but they
- 36:19Speaker 2: took it as a as a real thing that they
- 36:21Speaker 2: were watching something real and not like a show.
- 36:24Speaker 1: All right, So now we get into that final criticism
- 36:28Speaker 1: that we had kind of hung on too. We've alluded
- 36:30Speaker 1: to it a little bit, but that is the existential
- 36:33Speaker 1: risk that you talked about, where what if they like
- 36:38Speaker 1: kill us all because of this And it's you know,
- 36:41Speaker 1: it's called the dark Forest theory, which is basically like, hey,
- 36:45Speaker 1: the universe may be full of intelligent life and all
- 36:48Speaker 1: these you know, ancient advanced civilizations and they are all
- 36:52Speaker 1: still surviving because they know when you go into the forest,
- 36:55Speaker 1: you keep your mouth shut and you don't go in
- 36:58Speaker 1: there shouting around. And that's the dark forest theory. Like
- 37:01Speaker 1: you survive by being quiet.
- 37:03Speaker 2: Right, And so they're saying, what Medi's proposing to do
- 37:07Speaker 2: is walk into the forest and shout as loud as
- 37:09Speaker 2: we can to get the attention of anyone we can.
- 37:13Speaker 2: And again, you take it back to this idea that
- 37:16Speaker 2: MEDI proponents will be like, look, if it's if this
- 37:19Speaker 2: civilization is as old as we suspect, it has to
- 37:22Speaker 2: be altruistic to have survived and not blown itself up.
- 37:26Speaker 2: We talked a lot about that in the alien contact episode.
- 37:30Speaker 2: That's not necessarily true, Like it's possible, that even probable,
- 37:35Speaker 2: that they developed altruism for their own society, which is
- 37:40Speaker 2: how they would have survived. That doesn't necessarily mean it's
- 37:42Speaker 2: extended to other societies. They might have figured out a
- 37:45Speaker 2: long time ago that most societies that are up and
- 37:49Speaker 2: coming need to be wiped out because they're going to
- 37:51Speaker 2: screw things up for the universe. So they take it
- 37:53Speaker 2: upon themselves to wipe us out.
- 37:56Speaker 1: Right. It's kind of interesting, though, when I feel like,
- 37:59Speaker 1: whenever we talk about this stuff, there are two camps.
- 38:01Speaker 1: One is, hey, maybe they will wipe us all out,
- 38:05Speaker 1: so there's a danger, so we shouldn't try. And then
- 38:08Speaker 1: another camp says, well, why do we assume that they
- 38:11Speaker 1: will wipe us out? What if they're friendly and they
- 38:13Speaker 1: have the solutions to cancer and global warming and climate change?
- 38:18Speaker 1: But I never hear anyone saying, well, what if they're
- 38:21Speaker 1: both kind of like planet Earth?
- 38:23Speaker 2: Right?
- 38:23Speaker 1: Like Earth is everything. It's people that would welcome you,
- 38:28Speaker 1: or people that would spit in your face and start
- 38:30Speaker 1: a fistfight, like who knows? Why does it have to
- 38:33Speaker 1: be one or the other?
- 38:34Speaker 2: Right, it's like Topeka and Kansas City, right. So that's
- 38:42Speaker 2: a really great point though, and I actually have seen
- 38:44Speaker 2: some people say, like, you know, also, there's been plenty
- 38:48Speaker 2: of examples of even contact that wasn't meant to be
- 38:51Speaker 2: violent having horrible catastrophic consequences just here on Earth.
- 38:56Speaker 1: Right.
- 38:57Speaker 2: And the other thing is this, so again many many
- 39:00Speaker 2: proponents really kind of bulk up that argument that MEDI
- 39:05Speaker 2: critics use, which is, you know, it's possible that they're
- 39:10Speaker 2: hostile and could wipe us out. And many proponents are like,
- 39:12Speaker 2: you're being ridiculous, You're being a rational, paranoid, childish even
- 39:16Speaker 2: they're very dismissive of it. But if you dig into
- 39:20Speaker 2: what the MEDI critics are saying, they're not saying like, yeah,
- 39:24Speaker 2: of course, an alien civilization is hostile and is going
- 39:28Speaker 2: to wipe us out if we contact them. They're saying,
- 39:31Speaker 2: we don't know that they're not hostile, and we all
- 39:34Speaker 2: agree that there is a chance, however small, that they
- 39:38Speaker 2: could be hostile, and because the consequences of that chance
- 39:42Speaker 2: coming true would result in the end of humanity, right,
- 39:47Speaker 2: that makes it not worth doing or else doing a
- 39:50Speaker 2: lot more cautiously than what you guys are proposing right now,
- 39:53Speaker 2: because what we're proposing right now is basically the people
- 39:58Speaker 2: of medi and elected people who have access to radio
- 40:02Speaker 2: telescopes sending out messages for the rest of the world. Again,
- 40:06Speaker 2: I know I've said it before, but you really have
- 40:08Speaker 2: to step back and think about what they're doing, especially
- 40:10Speaker 2: if you think all of this is ridiculous. It can
- 40:13Speaker 2: be ridiculous seeming, but at its core there's a definite
- 40:19Speaker 2: controversy there, and a rightful controversy, a worthy one.
- 40:24Speaker 1: Now, has the movie been made yet where a rogue metti,
- 40:31Speaker 1: you know, computer nerd late at night, kind of like
- 40:35Speaker 1: a newman in Jurassic Park, right, you know, sneaks in
- 40:40Speaker 1: and broadcasts a message that they've crafted that actually gets
- 40:44Speaker 1: heard and brings about the invitation for visitation.
- 40:49Speaker 2: That was the subplot to Sleepless in Seattle, don't you remember?
- 40:56Speaker 1: You're right, I guess every idea has been taken.
- 40:58Speaker 2: It's all been done. There's nothing new under the sun, Chuck,
- 41:02Speaker 2: unless some aliens show up, and that will change a lot.
- 41:06Speaker 1: That's right.
- 41:08Speaker 2: I think this wraps up our alien contact episode. We
- 41:11Speaker 2: did UFOs too, a two parter on Project blue Book.
- 41:15Speaker 1: Remember, Yeah, and did we do some live thing at
- 41:18Speaker 1: Comic Con once.
- 41:19Speaker 2: That was on UFOs. In general, I.
- 41:22Speaker 1: Think, okay, all right, so this wraps it up until
- 41:26Speaker 1: we actually get that contact, and then we'll have to
- 41:29Speaker 1: follow up.
- 41:29Speaker 2: Yeah, we'll put an asterisk on there. Yeah, or, as
- 41:32Speaker 2: you would say, an astros.
- 41:35Speaker 1: I didn't say that, right do.
- 41:38Speaker 2: Since I just made fun of Chuck and really lovingly everybody,
- 41:41Speaker 2: it's time for listener mail.
- 41:45Speaker 1: With intention. I'm gonna call this correct. I'm getting you back. Okay,
- 41:50Speaker 1: you got something wrong in the skydiving episode. We had
- 41:53Speaker 1: a few people right in already, but TJ's is more concise,
- 41:58Speaker 1: so I'm gonna go with tech. Okay, Hey, guys, Scotting.
- 42:01Speaker 1: In the Skydiming episode, Josh was explaining stall speed for
- 42:04Speaker 1: an aircraft and said that the prop planes can fly
- 42:07Speaker 1: slower before their engine stall. Not exactly correct. In aviation,
- 42:12Speaker 1: stall speed refers to the minimum speed and aircraft can
- 42:14Speaker 1: fly that the wings generate lyft, so it's a wing stall.
- 42:19Speaker 1: If you fly slower than an aircraft's stall speed, the
- 42:22Speaker 1: wings are not provided enough lift to overcome the aircraft's weight.
- 42:25Speaker 1: It'll drop like a rock man.
- 42:27Speaker 2: That would be so bad.
- 42:29Speaker 1: I always enjoy the great content and can always rely
- 42:31Speaker 1: on you guys for hours of education and entertainment. Sincerely,
- 42:36Speaker 1: That is TJ. Singh.
- 42:38Speaker 2: That's awesome, Thanks TJ. Well put gently put. And one
- 42:42Speaker 2: of my very best friends when I was a really
- 42:44Speaker 2: little kid, was named TJ. Thomas Jefferson even he was
- 42:48Speaker 2: a bi centennial baby.
- 42:50Speaker 1: Really yeah, that's pretty great. And listen to this PS.
- 42:53Speaker 1: This is awesome. Sincerely, TJPS. An auto response to let
- 42:58Speaker 1: writers know their email was received would appreciated. Oh yeah,
- 43:03Speaker 1: well how about this, TJ. I'm letting you know with
- 43:05Speaker 1: my mouth message received. Yeah, I'm gonna I'm gonna write
- 43:10Speaker 1: it back THO, because I always let people know when
- 43:12Speaker 1: we've read their email.
- 43:13Speaker 2: Very nice, Thanks again, TJ. Thank you Chuck. That was
- 43:16Speaker 2: a good pick, and thank you everybody out there for
- 43:19Speaker 2: listening to us. If you want to get in touch
- 43:21Speaker 2: with us, like TJ did, you can send us an
- 43:23Speaker 2: email to Stuff Podcasts at iHeartRadio dot com. Stuff you
- 43:29Speaker 2: Should Know is a production of iHeartRadio.
- 43:31Speaker 1: For more podcasts my heart Radio, visit the iHeartRadio app,
- 43:35Speaker 1: Apple Podcasts, or wherever you listen to your favorite shows.