Latest / Why We Do What We Do / Thumbs and the Evolution of Culture
Transcript
- 0:03You're listening to Why we Do what we do? Welcome to Why we Do
- 0:16what we Do? I am your all thumbs host Abraham and I'm your thumbs
- 0:21up host Shane. Where I say Collogy podcast, we talk about the things
- 0:25that people do and how they do them, and why they do them and
- 0:27the digits with which they use to do them. Yes, and you know,
- 0:32at some point time we're going to talk about when they do them and
- 0:34who they do them, but like right now, we focus on why and
- 0:36what they do. So that's right, the wh some of the wh questions
- 0:40that are in the name, and maybe we'll get to the other ones too
- 0:42at some point. Thank you for being here with us, Thank you for
- 0:46listening. And let's go ahead and start by talking about the fact that this
- 0:49is if you're listening to it on the day that it publishes June twenty sixth,
- 0:54which means we're celebrating or acknowledging the Some of the holidays include Beauticians Day.
- 1:00Ah, it's a forgiveness Day, which I'll never celebrate it is are
- 1:07you holding a grudge? Yeah? I will celebrate every day every day,
- 1:12but that day as International Day against Drug Abuse and Illicit Trafficking Day. Huh.
- 1:21That seems we kind of just missed that with our our episodes on addiction,
- 1:26didn't we. I know it was all lead up to celebrating that day.
- 1:27I guess maybe fair sure, maybe, well, I don't know.
- 1:32It's International Day in support of Victims of Torture. Yikes, I mean support
- 1:37them for sure. We let's not have them be victims anymore. Yeah,
- 1:41let's not torture people. It's National Canoe Day. Hmm. It's National Pudding
- 1:45Day, specifically, let me say that again, National Chocolate pudding Day.
- 1:49All sure. It is National Parchment Cooking Day. Don't cook the parchment,
- 1:57No cook with the parchment. Yes, yes, es, yes. It's
- 2:00also Tropico Cocktails Day or Mocktails if you like mocktails, Like, put a
- 2:05little umbrella in your drink and you'll be fine, that's right, and Arnold
- 2:08Palmer with just iced tea and lemonade and an umbrella. Yeah, and you
- 2:12can keep it cool by putting it in your refrigerator because it is World Refrigeration
- 2:16Day. What a game changer that was. I was just gonna say.
- 2:19I was like, this actually might be worth spending some time on if we
- 2:22ever dig into like human inventions specific episodes because refrigeration like changed this world for
- 2:29humans. Yeah. Also it's actively changing the world for the worst because it
- 2:32is contributing to global warming, but it is also so important. Yeah,
- 2:38that would be so much fun to do a series on human inventions like that
- 2:42might be a new set of episodes that we do. Yeah, there's a
- 2:45lot to talk about there. Yeah. I can't wait to talk about the
- 2:46printing press as a book fan myself. Right. It is also Boys and
- 2:51curl Boys not Boys and Curls, Boys and Girls club Week. I mean
- 2:57it's Pride month. Boys and curls kind of makes sense, but you know,
- 2:59yeah, that's fair. It is a Fish are Friends not food week.
- 3:02I support this. I like that. I'm friends with fish. Huh.
- 3:06That's National Body Piercing Week as well. Huh, that's I support that.
- 3:09That's great. Got some experience there. It is a National Camping Week,
- 3:15which is nice because also National Insect Week, so campers and insects can
- 3:19celebrate together and they will totally. They will. National Lightning Safety Awareness Week.
- 3:27This one strikes a little close to home for sure. Yeah. Hu,
- 3:31my mom was nice. My mom was hit by lightning. She's alive
- 3:36and well, and we call her Boltrius because she has powers. Now,
- 3:39wow, but she was hit by lightning. She's several years ago. Glad
- 3:43she's okay. Yeah, me too. I realize it's also my turn to
- 3:45say the next thing. It's also wind Jammer Days. What does that mean?
- 3:49I don't know. I feel like I would be more stoked if it
- 3:51was wind Breaker Days and everybody was wearing like nineties wind breakers that were like
- 3:54Charlotte Hornets themed or something like that. It is Deaf Blind Awareness Week,
- 4:01so that's an important one. I like that. There's some people's birthdays I
- 4:05could acknowledge real quick. It's apparently Ariana Grande's birthday, Audrey Plaza, Nick
- 4:11Offerman, and Paul Thomas Anderson. Oh, I like most of those people.
- 4:18I love Nick Gofferman. I mean, I like all of those great.
- 4:21But you know, yeah, yeah, they're all fine. Nick Gofferman's
- 4:24great though. Yeah, not to single anyone out of just you know.
- 4:28Anyway, we are, as I said, a psychology podcast, not a
- 4:31podcast that simply recounts the various holidays that people make up and then decide to
- 4:35dedicate a day, week, or month too, or even more than that
- 4:39or less than that sometimes, but nevertheless we talk about those things because you
- 4:43know we can. This is our platform. We do what we want.
- 4:46Yeah, we're allowed to say what we want on here. I mean we
- 4:47try to say things that are reasonable, but we do say whatever we want
- 4:50on here. We try and so, at the risk of cursing us forever,
- 4:58I'm going to say, this might be a short one. I guess
- 5:00we'll see before we get started. Want to let everyone know who is listening.
- 5:04If you like what you are hearing today, if you are already enthralled
- 5:08by this weird kaka mami thing that we're doing, then you can support us
- 5:13by joining us on Patreon, leave us a rating and review, pick up
- 5:15some merch like and subscribe. I don't know if I've said Patreon already do
- 5:19that thing, and we'll talk more about how you can support us at the
- 5:23end of this topic. But today we've got something important in mind or maybe
- 5:27on hand, which is our thumbs. Yes, so sometimes we forget how
- 5:31drastically the morphological layout of our bodies affects our psychology. So it's important to
- 5:38understand how our bodies impact everything around us and inside of us. Yeah,
- 5:43yeah, we take for granted every aspect of our ways of interacting with the
- 5:47world around us, when in fact these physical features directly drive our experiences,
- 5:54are learning and our development. Even if you ever think about the fact that
- 5:58when you're looking out into the world, everything that you're seeing is a construction
- 6:02of how our eyes and brains are picking up and using the light that's bouncing
- 6:08off of the things around us. Very effective, but it's just one way
- 6:11of interacting with the space that we find ourselves in, and it is one
- 6:15that has gone through at least two layers of filtering. Yes, so our
- 6:18biology is really important here. Yeah, And imagine if humans were on average
- 6:24half their current height, distances would be more difficult to cover. We would
- 6:28need a lot less food and less space in general, and we wouldn't be
- 6:30able to see as far just from walking around, and this would be a
- 6:34profound shift and how we think, plan and move around the planet and probably
- 6:39interact with other people. Yeah, very much so, and would therefore affect
- 6:43how we think about basic things just like getting from point A to point B
- 6:47and what that means and how many resources are ever needed for one single person.
- 6:51Right, Or imagine that we could see into the infrared color or the
- 6:56infrared part of the color spectrum, we'd probably would think prefer darker places because
- 7:01there'd be less overwhelming light that would be there would be able to detect things
- 7:06that were behind solid objects that we can't see just by using the lights the
- 7:11part of the light spectrum that we currently use, and we might be practically
- 7:14blinded by places where there was a lot of heat, right, like if
- 7:17it was just very hot and it looked like a haze just filling our view,
- 7:21not to obscure everything that we were trying to see, Yeah, that
- 7:25would be bad news. Furthermore, our senses and physical features determine the extent
- 7:29to which and how we interact with the world, and that shapes the behaviors
- 7:33and ultimately affect our senses in physical features. So it's all interacting. So
- 7:36like, for instance, we require nutrition from plants to survive, so we
- 7:41cultivate and grow plants we need for food, and the food we create slowly
- 7:45shapes how we evolve to handle the kinds of foods we consume. So in
- 7:47the current future of humans, our body is going to process sugar very differently,
- 7:53right because of how much we consume, how much we need it and
- 7:55stuff like that, and eventually our bodies will process millions and millions of tons
- 8:00of sugar, even more so than we do now. Right, we'll basically
- 8:03turn into honeybees. Yeah, that's it. That's all we are. We're
- 8:05just hairy honeybees. All of that to say is like all of that stuff
- 8:09shifts and changes, and that's all part of like the natural selection piece that
- 8:13we're going to get into. Yeah, maybe what we're doing with the kind
- 8:16of diets that we've cultivated is that we will become dependent on that. Like,
- 8:20right now, sugar is pretty much superfluous to a healthy diet, Like
- 8:26we don't need it. But maybe after you know, hundreds of years of
- 8:31consuming it at high volumes, will actually become physically dependent on it and will
- 8:35have to have it be a key feature of things that we eat to continue
- 8:41to survive and live a healthy life. Right, and then maybe we'll look
- 8:43at at sugar and be like, Eh, that's healthy food. I don't
- 8:46want that, right, Yeah, no, thanks, Eh salad yuck,
- 8:50it'd be sugar salad. I like it. So arguably one of the most
- 8:54significant features of our physiological form, at least one that is the most unique,
- 9:00equally human adaptations that we have as humans is our opposable thumbs. And
- 9:05just in case people are curious what it means to say that they're opposable,
- 9:09which I think is reasonable because they're not exactly completely opposite our hands. What
- 9:13it means here is that they work freely and independently of our other fingers.
- 9:18Like you can move your thumb around without having to move your other fingers,
- 9:22and it faces a different direction than the other fingers, and it can touch
- 9:24every other finger individually. And you can go ahead and touch your thumb to
- 9:28your index, middle, and ring fingers. That is not something very many
- 9:33other creatures can do. You can try this out. So go ahead and
- 9:35take a paper towel, roll or a wooden spoon, hold onto it with
- 9:39your forefingers or no thumb, and then imagine holding your body up in a
- 9:45tree, maintaining mobility while weighing a few hundred pounds with just your fingers and
- 9:50no thumbs. That's right, go ahead and do that. We'll wait.
- 9:52Yeah. Now, of course, there are many creatures, mostly primates,
- 9:58that have some version of opposable thumps, So then I think people will rightfully
- 10:03ask why does this seem like this is actually that important and particularly important for
- 10:07humans. Yeah, So, Abraham, why is it so particularly important and
- 10:11specifically important for humans? I was thinking the same thing that you just asked.
- 10:16You're setting me up. Yeah, what made us adapt to develop pumps?
- 10:20Okay, so let's skip the whole. If we evolved from apes,
- 10:22then why are there still apes? Thing, We've been there, We've done
- 10:26that. We evolved from a common ancestor They're done all right. Way back
- 10:31in the day, three million or so years ago, our primate friends started
- 10:35spending more time in trees. We started climbing things that were nearby. Yeah,
- 10:41which gave us access to a few different things. It gave us access
- 10:45to more food less competitors because there were not as many things as the trees.
- 10:48Varied foods like plants and flowers that had differential health benefits, So primates
- 10:54had access to stuff that others didn't, and there was less contact with predators
- 10:58and easier escape from predators. So basically they could just jump up into a
- 11:01tree and hide from the people that couldn't climb, or the things that couldn't
- 11:05climb. Yeah, mostly probably mostly things that then couldn't get to them,
- 11:09and again access to food, so it's like a safe, out of the
- 11:13way place that also is abundant in food. Great for a species that tends
- 11:18towards lays the way that we do. To stay up there, though,
- 11:22you've got to be able to sort of hold on to stuff and be able
- 11:24to move around, which means you need to be able to grasp those things
- 11:28that are around you, which in this case were branches. Hence, opposable
- 11:31thumbs became very useful and necessary. And those of us who are ancestors who
- 11:37had things that were more like opposable thumbs were more likely to be able to
- 11:41move about successfully, climb faster, stay up there longer, get the resources
- 11:46more successfully, therefore reproduced more. That's just how evolution works. And the
- 11:52thumbs became more and more useful as that mutation was more and more selected for
- 11:56by the circumstances of that environment. Yes, so thumbs were selected in.
- 12:01Tails were selected out for humans, right, like if you really think about
- 12:05it, I mean, like we have a tail bone. I was born
- 12:09with a tail, but you know, for the most part humans don't need
- 12:11them anymore. But you were also born with horns, so I was also
- 12:15born with horns. And the doctor's the vets, I should say, the
- 12:18veterinarians that burned me screamed and screamed and screamed at the advarition that I was
- 12:24the monster man that I was on the day that I was born. Well,
- 12:30with all of that, this is probably a perfect time to let people
- 12:33go think on that for a minute and we'll do the ads. Oh man,
- 12:37this ad sticks out like a sore thumb. Okay, let's get back
- 12:48on track. I'm done talking about Shane's terrifying birth and talk about animals.
- 12:56My poor mother. So, for one, most other animals with a postable
- 13:00thumbs do not have the same proportions or muscular control that we have. So
- 13:03apes, possums, lemurs, pandas, chameleons, and some tree frogs have
- 13:07opposable thumbs, but only kind of. I imagine that everybody here while you're
- 13:13listening this is probably thinking a whole lot about your thumbs and how your thumbs
- 13:16move and how they operate. And you should because it is very unique in
- 13:20the animal kingdom. Yes, so there are lots of creatures that have fairly
- 13:24dexterous like finger clawed digit things on the ends of their arms, right like
- 13:31octopus has the ability to like it's very very flexible, but also lives in
- 13:35an environment that it doesn't have access to things that require dexterity. They don't
- 13:39live very long anyway. Point being right, Posle thumbs good. Not very
- 13:43many animals have them. We just listed the ones that do. So.
- 13:46Some people might be thinking what about pandas, So most bears they have,
- 13:50well, actually, many creatures that are four legged have these do claw things.
- 13:54Pandas are kind of unique. They have this thing that looks very much
- 13:56like a thumb. As a matter of fact, it's often called a pseudo
- 14:01thumb. They have a bone that extends from their wrist. It's not actually
- 14:05a digit. It's a bone that extends off the wrist. But it because
- 14:09it's a bone and it's not it doesn't have the sort of carpols in.
- 14:13It doesn't have the joints that move. It doesn't move on its own.
- 14:16Instead, what a panda has to do is move its fingers toward the thumb,
- 14:20and this means that the thumb cannot help grip anything. It's just the
- 14:24other strength of the it's the strength of the other digits that allows it to
- 14:28manipulate objects. So It basically pushes those against an immovable thumb. It's like
- 14:33an anchor, kind of like an anvil, and so it can close things
- 14:35around that, but the thumb can't actually do anything that is dextrous or would
- 14:41enable fine motor movements. You know. I think when people argue about evolution
- 14:46and they say, if we came from apes, why are there's still apes?
- 14:50I think that that's the worst argument against evolution. I think the argument
- 14:54against like natural selection and evolution is the panda bear. Like, this thing
- 14:58should not exist. It does not makes sense. And we are keeping this
- 15:01thing alive for decades because it's actively trying to select itself out. It's a
- 15:07charismatic megafauna, and so we have decided to protect it in lieu of protecting
- 15:13many other keystone species that are critically important to their environments. Pandas are cute
- 15:18or not advocating that we get rid of If anything, I would say,
- 15:20I'd advocate for just more support of all the other animals that also need protection
- 15:26from us. But I think that's where they get their probably less supportive critics.
- 15:35Yeah, I have seen so many pandas fall out of trees clumsily,
- 15:39like in the recent weeks, and I'm just like, what's going on.
- 15:43Maybe one day we'll do we'll do an episode on conservation, That's what we'll
- 15:46do, and we'll continue to save the pandas so, this thing with the
- 15:50thumbs that we're talking about, with this like kind of pseudo thumb thing,
- 15:54this is the case with other animals as well. They have the thumbs,
- 15:56but they can't use them very much. And even if they could, would
- 16:00their brain allow for the development of tool use, well, possibly it is
- 16:06very possible that that could happen. Yeah, I think a lot of people
- 16:08will immediately have been thinking about the fact that one of the things our opposable
- 16:12thumbs gave us was that we could then manipulate tools. We can manipulate objects
- 16:18that would allow us to more easily manipulate other objects. The very basic lever
- 16:23right, or using a stick to manipulate things is not actually totally unique to
- 16:29humans. There are many creatures who do use some form of tools, but
- 16:33we could like custom make our tools very specific for very particular tasks. Right,
- 16:38Let's put this experiment to the test. Let's give a monkey some tools,
- 16:42teach them how to use it. Right, And so people have actually
- 16:47done this. Apes have been trained to use tools, and they were able
- 16:51to use those tools successfully to a point. Right. The issue is,
- 16:55as we've been talking about, the thumbs are too short and they're too weak
- 16:59relative to the rest of their hand. They've got these long fingers that are
- 17:03very strong, and their palms are also very long, and this actually prevents
- 17:07apes from being able to sort of close their fingers and their thumb together around
- 17:12something very fine, like the tools that we might use, and they therefore
- 17:18lack the precise dexterity that is very It's so easy for us, we literally
- 17:23don't have to think about it. It's very natural. Our hands are just
- 17:26perfectly shaped to grip things in such a way that we can manufacture and hold
- 17:32tools against our thumb, where a thumb is a critical point of how we
- 17:36manipulate fine motor movements, and even other apes who have very similar hand structures
- 17:41is not proportionate enough, and the muscles aren't set up in a way that
- 17:45they can get the same utility of out of trying to use similar tools.
- 17:49Right, And so the necessity to outsmart our predators and our prey due to
- 17:53lack of pretty much all other defensives and defensive biology forced humans to be creative.
- 17:59So we're like a soft bunch, Like we're soft, meaty, tasty
- 18:03thing for predators. Like, we're slow, our senses are dull, Like
- 18:07it makes sense that, like predators would find us and seek us out,
- 18:11so we had to be smart about things. Also, we can't hunt very
- 18:14well with just what we've got because as you said, we're slow, we
- 18:18don't have any sharp parts on our bodies. We don't have a lot of
- 18:19protection. So the thing fights back, it's probably gonna win. Like we,
- 18:23as you said, we are marshmallows with very easily breakable skin and very
- 18:29little defense and very little offense. Yeah, we're the peeps of the animal
- 18:33world. Like it's absurd, so I like it. Maybe we should call
- 18:41this episode the Peeps of the animal World. That's for the episode on why
- 18:47our rib cages doesn't extend over our stomachs, Like yeah, that makes sense.
- 18:51Yeah. Now, with evolutionary pressure to survive, those of us with
- 18:55strong proportioned hands would start manipulating objects for intentional use, and that is we
- 19:00would start making tools. Yes, so we can actually look back at the
- 19:04evolutionary history that we do have for fossil records in humans, and one of
- 19:08the more recent research that's come out looking at our ancestor Austrolopithecus apensis, which
- 19:15is many people may have heard of Lucy. This was like a primate that
- 19:19they found that was sort of early in the chain of evolution toward what would
- 19:23later become humans. This was a pretty ape like version of a human ancestor
- 19:27lived about two to three point eight million years ago. And this creature that
- 19:33was again an ancestor to humans, also had opposable thumbs. However, the
- 19:37thumbs were thin and short and were likely not very strong, like we've got
- 19:41big fat muscles and bones in our thumbs that make them very strong, versus
- 19:47this previous ancestor where they were kind of thin and weak, right, And
- 19:51it was probably not until Homo habilis about two point five million or Hittelis habitlis,
- 19:56habitlists. I think it's Hibilis. I think you had it right the
- 19:57first time I see those were and I go so either way about two point
- 20:03five million years ago, and it was that group that the hands evolved to
- 20:07have the skeletal and muscular arrangement that makes them good for fine motor dexterity a
- 20:11specifically tool making, and just as a quick side note, homo habilis means
- 20:17handman, So that's where that comes from, which is fun. That's a
- 20:19fun little nugget of information. Right, Yeah, that's what we do.
- 20:25Yeah, fun little nuggets of information. Yeah. So you better win trivia,
- 20:29is all I'm saying, folks, or at least get some of those
- 20:32questions, right, yeah, get at least that one usually a hodgepodge.
- 20:36Okay, let's talk about some of these tools. One of the probably first
- 20:40things that people made were offensive or defensive tools, which were knives, and
- 20:44early knives were likely made by striking one rock against another until it formed a
- 20:48sharp point. Now, an important point that anthropologists have been investigating and experimenting
- 20:53with this is that there's basically no way to do this without being able to
- 20:59powerfully grip and manipulate both objects. To get those precise strikes, you have
- 21:03to be able to hold one rock steady, and you need to be able
- 21:07to grip the other rock in a strong grip that will allow you to strike
- 21:11a specific target on the rock that you're hitting, so that you can sort
- 21:15of shave off chunks of it to start whittling it down into a sharp point.
- 21:19And so that was something that was uniquely available by virtue of those opposable
- 21:26thumbs and proportioned skeletal muscular structures that allowed for strong gripping and precise movements.
- 21:32This whole episode started making me think about otters and how otters will use rocks
- 21:36to break open clams and oysters and whatnot. And you kind of think the
- 21:40same thing, right, Like you're like, oh, well, like you
- 21:41could take a rock and bang another rock, and that doesn't really require precision.
- 21:45Sure, if you're just banging rocks together, or like cracking open a
- 21:48coconut, that doesn't require as much dexterity. But if you are trying to
- 21:52make something and require that precision, is the piece that they're getting at is
- 21:57it's not about exactmshing rocks. The precision piece that I think that we need
- 22:02to focus on here, You know, a small fine target that you're striking
- 22:06right exactly. So, human hands have long thumbs that are extremely strong,
- 22:10like way way stronger than anyone else with thumbs. Also, we have a
- 22:14staggering amount of small fine muscles throughout our hands, so our hands are actually
- 22:18pretty strong, powerful tools as part of our biology. Yeah, and all
- 22:22those fine muscles really enable like a very precise, coordinated movement. So we
- 22:29have these long swoll thumbs that are opposite our fingers move independently, and then
- 22:33in a combination we have these massive brains and we suck at everything else else.
- 22:40Yeah, that's pretty much what we've got. To be fair, we
- 22:42actually have remarkably good vision for the creature like ourselves. Okay, but not
- 22:48the best vision of all the animal kingdom, but like it's god damn good,
- 22:51No, it's it's pretty good. And so thus we needed to mechanically
- 22:55upgrade our other survival features because we've got, like I said, all we've
- 22:57got is these thumbs and our brains and pretty good eyes. That's pretty much
- 23:00it. So the ability to mechanically upgrade our defenses and offenses meant that we
- 23:07could have better shelter, better hunting, better defense, a better network of
- 23:11cooperation probably the most important thing. And to do this we needed tools and
- 23:15language, right. So, recent research out of Germany has investigated the evolutionary
- 23:21trajectory of the shape of our hands and the onset of tool use in humans,
- 23:26and so it's fascinating stuff. When it comes to an evolutionary standpoint.
- 23:30Yeah, So as our hands became more capable of creating and manipulating tools,
- 23:33we also were developing language and culture at the same time. And we because
- 23:37we had this, we could teach one another to make tools, and in
- 23:41doing so we got better at making and using tools, and in doing so
- 23:45we evolved our language culture in our brains. So likely those of us with
- 23:49the best adapted physical features also continued to exploit the use of those features and
- 23:55got closer and closer to modern humans. Because what was right about diversifying the
- 24:02content of skill that someone had in making something meant that you started to get
- 24:07different inputs, orientations, and ideas that refined those processes a thousand times faster.
- 24:15Like if it was just going to be passed on within a single family,
- 24:18or as like that one trait randomly mutated, sometimes it was never going
- 24:22to evolve at a rate that would enable a full scale culture to develop.
- 24:26But what did happen instead is that like having a variety of those skills meant
- 24:32like language was critically important, but also been able to do this sort of
- 24:34fine motor dexterity was critically important as well, and so those two things worked
- 24:41together and built off one another to sort of form the trajectory of culture and
- 24:47humanity. Right. So there, here's this really great quote. It is
- 24:51likely a crucial element underlining the development of complex culture over the last two million
- 24:56years, shaping our biocultural evolution. And that that quote comes from Katerine Havardi
- 25:02of Everhard Carl's University of Tubingen in Germany. So that's a very long name
- 25:07for a school. Yes, she was I think the lead investigator on this
- 25:11recent paper looking at the evolution of sort of human hands as they relate to
- 25:17culture and human evolution. As I was just saying, now, we've already
- 25:22sort of said this, but as virtually every website has recommended in understanding and
- 25:26appreciating the role that our thumbs play, and we sort of mentioned this earlier,
- 25:30is try depriving yourself of your thumbs for a bit, and just as
- 25:33we mentioned with like the paper towel role, tape them down, or wear
- 25:37gloves or just try to avoid using them, and you'll pretty quickly, I
- 25:40think, begin to appreciate how much we've grown to depend on these weird,
- 25:42stubby little appendages that hang off the side of our hands. They're very important,
- 25:48So think about that. Give it a try. Yeah, just do
- 25:52yourself a favor. Grab a cup that is near you and try to drink
- 25:56out of it without your thumb, Like, just do that for a second.
- 25:59It is I just try to do it, and it is uncomfortable,
- 26:03Like I'm going to definitely spill my water on me. At the very least,
- 26:07you need to like fat little muscle where your thumb is to be able
- 26:10to grasp against it. And that's part of it. So like if you
- 26:12can even avoid doing that, that would be the other way to try and
- 26:15do it. And while you test that out, you can ignore these ads.
- 26:26All right, let us know how that experiment went. You can email
- 26:30us or post it on social media or put write a review about us for
- 26:33some reason where you decided that if you're review does not say five thumbs up,
- 26:40I'm gonna lose it. Great. I love it. So Lucy and
- 26:45the Ostrol Epithes scenes, which may be the first heavy metal band showed up
- 26:51and started using basic stone tools. So it was maybe not metal but maybe
- 26:56hard rock. Yeah, I think this would be like we probably call this
- 26:59classic rock now. Yeah, classic rock is feels good I like that.
- 27:03I actually like that more than anything else, So I'm not even gonna bother
- 27:06trying to come up with something else because that works better than anything else.
- 27:10And why we call it rock is because they used rocks. Yeah, thanks
- 27:15Lucy and the ostric who it is. But the interesting thing here, actually
- 27:18yes, except that the strength wasn't there. The interesting thing is that there's
- 27:22a heavy focus on the thumb as part of the hand. But only recently
- 27:26did we develop tools to assess musculature and not just the fossil itself, So
- 27:32it's only fairly recently that we understand how the muscles in the hand work to
- 27:37make it so the thumb is actually useful. Yeah, I mean, obviously,
- 27:41as this was evolving, we wouldn't have been able to hold a pen,
- 27:45but we could manipulate a lot of basic tools sticks, rocks, something
- 27:49like a knife or hammer type thing, et cetera. And those still required
- 27:53a lot of precise precision in those movements. But we weren't going to be
- 27:57at something as Dextra says, like painting or developing print text yet, right,
- 28:03So maybe that's why the band didn't like didn't work out, like why
- 28:07they really only maybe had one record and it's only a demo and you can
- 28:11never really hear it or find it anywhere. It's really rare. Yeah,
- 28:14they couldn't. They couldn't sign swag for their fans, so yeah, there's
- 28:18yeah, there's no autographs. And then people were like, I hate them,
- 28:21don't you? Oh man, could you imagine how sad that would be
- 28:23to be the first band, like the first rock band and just get booed
- 28:27off of a boot out of cave. That's probably how it went about,
- 28:32right, Yeah, I would imagine. So, so now we know we
- 28:33have thumbs, and we know why we have thumbs, but what if we
- 28:37didn't have thumbs? And we're not talking about like Jamie Jossa from Hate Breed
- 28:41how he only has one thumb. We're not talking about that. We're saying,
- 28:44like, what if humans evolved with no thumbs. Some of this is
- 28:47purely hypothetical, some based in science and medicine, including birth defects, trauma,
- 28:52et cetera. But the loss of thumb rates as a forty loss of
- 28:56hand. Any other finger, Losing any other finger on your hand is all
- 29:00only a twenty percent loss, except your middle finger. That's like a loss.
- 29:03That's Yeah, that's that. That communicates so much, at least in
- 29:07the Saints. Yeah, important symbolism there. Yes, So we actually started
- 29:11writing these notes quite a long time ago, and at the time Patrick was
- 29:15writing with us, so big thanks and shout out to Patrick for his help
- 29:18and putting together some of these notes. At the time, Patrick tried this
- 29:21typing test, which was really fun. So he typed this sentence. And
- 29:25now a new study combines the ancient evidence of fossil fingers and thumbs with cutting
- 29:29edge computer muscle modeling to conclude that South African hominins boasted flexible, capable thumbs
- 29:34much like ours as far back as two million years ago. So Patrick timed
- 29:38himself and typing with thumbs that took him eight point three minutes, and he
- 29:42made three errors. Without thumbs that took twelve point three minutes and five errors,
- 29:49so it was a fifty percent longer thereabouts. That feels like that sentence
- 29:55would take me about ten seconds to type. Maybe that's maybe that's what he
- 30:00was saying, because let me see, I'm gonna try this real quick.
- 30:03So yeah, all right, real time experiment, go, Shane go.
- 30:07Then I was Nate down done, all right, I had you write about
- 30:10thirty seconds. Okay, so thirty seconds. There are one, two,
- 30:14three, four errors that I would count. Well, I would count three
- 30:17errors because I just didn't capitalize some stuff. But so we were creating the
- 30:22without thumbs part two. No, I don't want to do that. That's
- 30:26a lot of experience. This seems like a well so you think about it,
- 30:33though, like the standard standard typing on a Quardy keyboard requires you to
- 30:36use your thumb as a space, like to press the space bar right,
- 30:38and so you know every word in there, there's there's several spaces that would
- 30:44absolutely delay how long it took you to write that. Yeah, maybe it
- 30:47was supposed to point three seconds, but anyway, it's no way that Patrick
- 30:52wrote that in a three point three seconds. I know, Patrick, there's
- 30:55no way. So you think the eight point three minutes is more realistic.
- 30:59I don't know what it is. I think that either. I think all
- 31:00of those measures are wrong. That's like, that seems like an absurdly long
- 31:04time. I mean, eight point three seconds is like stupidly fast, but
- 31:07like a p three minutes is a ridiculous can write so many pages of text
- 31:12with that? Yeah? Maybe maybe Patrick doesn't know how to type. Maybe
- 31:17that's the thing. Maybe Patrick doesn't know how to type. Maybe he didn't
- 31:19have a web design class like we did in high school. Maybe it was
- 31:22trying to do it from memory. So there's also a recall component. Anyway,
- 31:26let's let's get back contract here. Thumb's absent at birth. That is
- 31:32the thing that does happen. So interestingly, thumb opposition actually develops around six
- 31:34to eight months of age. And if one hand develops this, the other
- 31:38may develop movements or grasp that can be difficult to rehabilitate later in life,
- 31:44meaning that if like one hand does, the other one doesn't. So just
- 31:48an interesting thing about the development of this early on. Yeah, and there's
- 31:52also floating thumb, which is interesting. Floating thumb is the base of your
- 31:55thumb is weekly attached or unstable, limiting musculature control and stability when opposing another
- 32:02finger. So if you think about like kind of the way that your hand
- 32:05is structured, like every one of your fingers is like what it's called a
- 32:07hinge joint right a little bit where it's like it bends at that space.
- 32:10It doesn't really bend in a circle or anything, like, not your knuckles
- 32:14in your hand, but like your your finger knuckles. Yeah, and your
- 32:16thumb is a saddle joint, which basically means that like the base of your
- 32:20thumb kind of slides over the bone in your hand, similar to like a
- 32:24saddle is shaped. That's how the bone in your hand is shaped, and
- 32:27it slides over like that like you would put your legs over a floating thumb
- 32:30would be absent some of that joint or the muscles or intendons around that,
- 32:35so it would not like keep your thumb close to that bone and would not
- 32:38allow it to slide across that bone that way. Interesting. Yeah, that
- 32:43probably helps to yeah, part of the opposable nature of it, I guess.
- 32:49Yeah. We have some sort of interesting tidbits here. One is that
- 32:52some believe that our ability to hold things in our hands freed up our mouths
- 32:55to do like things like verbal vocal verbal community and talking. So because if
- 33:02you'll notice, most other creatures when they're carrying things will carry them in their
- 33:06mouths, but we can carry them with our hands instead, So that meant
- 33:08that we could annoy each other with podcasts. Yeah, you can thank thumbs
- 33:14for us being here doing this right now, Like if it will get them
- 33:16thumb. Yeah, thanks thumbs for why we do what we do. Yeah,
- 33:21why we do what we do? Brought to you by thumbs. That's
- 33:24our newest sponsor. So if you lose a thumb, the big and second
- 33:29toes can sub in. Like you can actually kind of do similar things with
- 33:32your big toe and your second toe on your foot that you can do with
- 33:36your thumb. Now you have to have the flexibility to bring whatever you're doing
- 33:40up to your face if you're like using it to drink or something like that.
- 33:43But like there is that other kind of barrier per se, but like
- 33:46you can do it has similar features. Yeah, you and the motivation you'll
- 33:51need that too. This reminds me of there's a skin on the office where
- 33:54Dwight decides he wants to learn how to use his toes as opposable thumbs.
- 34:00One of the cold opens and then it spills coffee all though for himself,
- 34:02and then high fives with his foot. It's very good. Yeah, it's
- 34:06so great. If you are experiencing thumb pain, it might be the case
- 34:09that, depending on the nature of that pain, an electric toothbrush might actually
- 34:14help the gripping of the toothbrush. People might be hurting their thumbs that way,
- 34:17and so an electric toothbrush might make that a little easier, depending on
- 34:21the nature you're dealing with. If it's because your thumb has been crushed by
- 34:23something unlikely to be helpful, but if it's because of how you're gripping your
- 34:27toothbrush, then maybe consider an electric one. Yeah. I think the part
- 34:31that you that everybody comes here for is all the correlational research. So yeah,
- 34:36right, this is gonna be so fun. So finger length might predict
- 34:38behavior, but it probably doesn't, which is a lot of fun. So
- 34:43it could or it could not. Finger length is a weird thing, but
- 34:45also yeah, shorter index fingers can mean that the person will engage in increased
- 34:51verbal aggression. Shorter index fingers might also mean that the person has improved athletic
- 34:55skills. Yeah, this is definitely one of those. Like, I think
- 34:59the way to orient to this is none of this is true. Other variables
- 35:02more correctly account for why this would be the case. And we're gonna say
- 35:07it anyway because it's funny. Shorter index fingers and men more likely to pick
- 35:12fights and women more likely to react aggressively when provoked. If you have a
- 35:16shorter index finger than your ring finger. Then you have healthier knees and a
- 35:22longer ring finger in men means you take more risks. So that's some nonsense.
- 35:28All of that is so much nonsense. It's so much nonsense. But
- 35:30I can guarantee that everybody's looking at your hands now, So isn't that the
- 35:35true gift of psychology is not necessarily and us so much. Yeah, it's
- 35:40not so much the finger length. It's that we on a podcast distant in
- 35:45the future, that you have listened to this for maybe the first time,
- 35:47We've got you to look at your hands. That's really that's the real joy
- 35:51of psychology and just appreciate them, just find the love, you know.
- 35:53So, according to that, that means I'm supposed to have healthier knees and
- 35:57I'm taking more risks. That could not be more opposite. You don't like
- 36:00to take risks and my knees suck. Yeah, I definitely have looking at
- 36:04this quite healthy knees, but in verbally aggressive, which I think would that
- 36:09lines up that tracks Yeah, Jess kidding, just kidding, all right.
- 36:15And the last thing here Nintendo thumb. Not to pick on Nintendo. It's
- 36:21more like video game thumb, but repetitive strain injury caused by repeated thumb movements.
- 36:24Some people sort of think of this as a Nintendo thumb, the sort
- 36:28of hours and hours and hours of just you know, manipulating buttons and knobs
- 36:32on a control over some sort. Yeah, so just a thing that people
- 36:37talk about. Yeah, I mean, you know, repetitive strain injury.
- 36:39Like I was taught about that at Starbucks. Like, that's something that they
- 36:44train their breathes on because you do the same thing over and over when you're
- 36:46making coffee. Makes sense that they're like, hey, don't do that,
- 36:50because you'll hurt yourself if you do it too much. So it's just a
- 36:52thing that happens when you do the same thing over and over and over again
- 36:54too much. Yeah, which is likely true of virtually anything. Yeah,
- 37:00including ads. Hey, I think maybe mission accomplished. That was kind of
- 37:09a shorter one, because that is basically what we have to say about thumbs.
- 37:13Think about the fact that this weird part of our body has enabled a
- 37:15huge amount, if not all, of our culture to develop. Granted,
- 37:20we needed language and the media goo between our ears to help, but all
- 37:23of that was a part of the stew that became humans and what humans do.
- 37:30So I think that's what I have to say about thumbs. Anything you
- 37:32like to add or anything that I forgot before we start transitioning to our credits
- 37:37and recommendations. I think my favorite thumb related thing that I can think of
- 37:43as probably The Gladiator. Like I think that that that's like the most like
- 37:45prominent thumb related media that I can think of. It is like when they
- 37:50give the thumbs up and thumbs down, and it's like that's how the Emperor
- 37:53decided. Like I thought that was so like that stuck with me for so
- 37:57many years, and that's like really the only thumb related media that I can
- 38:00think of. I don't know why I came to me just now. The
- 38:01movie Yeah, Glad you're the movie with Joaquin Phoenix and Russell Crowe. Yeah,
- 38:06I mean I know there's other thumbs up thumbs down things that happen,
- 38:08Yeah, but like that was one thing I think of a lot when it
- 38:10comes to thumbs. There's like the thumbs up emoji that's like the icon for
- 38:15Facebook or metaw or whatever. Oh yeah, that's weird. And you know,
- 38:21I think MySpace kind of started with a very similar thing of you know,
- 38:23liking people's photos and whatnot or something of that nature. I don't know.
- 38:28Yeah, forgetting now, so keep up with it. Yeah, I
- 38:32just stopped caring so many years ago. Yeah, yeah, I like it.
- 38:37Well, if you're joining us for the first time, one of the
- 38:38things that we do is we like to share some recommendations that are usually,
- 38:44if not always, I mean not always, but usually unrelated to the topic
- 38:46at hand. So we're going to share those things that we find fun in
- 38:50it and enjoyable and that you might find fun and enjoyable too. But in
- 38:53the meantime, I need to tell you some things that are important, which
- 38:57is that if you'd like to support the show, as I said, you
- 38:59can leave us a rating review. It's very helpful helps the algorithm find more
- 39:02people you can like and subscribe. That way, you never miss an episode,
- 39:06which you definitely don't want to do. You can pick up some merch
- 39:07from our merch store, and you can go join us on Patreon, and
- 39:12if you do that then you will have many benefits. One of those is
- 39:15that I'm going to read your name because I just appreciate the fact that you
- 39:19have made the leap to come help us financially, and that is Mike,
- 39:22m Megan, Mike T, Justin, Kim, Joshua, Brad, Stephanie,
- 39:25Olivia, Brian, Ashley, Kiara, and Michelle. Thank you all
- 39:30very much for your generous contributions and keeping us going. Yes, we love
- 39:35you so much. Thank you so much to my team writing in fact checking
- 39:38from Shane and myself with some extra help, and a special shout out to
- 39:42Patrick for his work on this episode. Our sound editing and engineering and making
- 39:46goodness comes from Justin, and our social media coordinator is Emma Wilson. Now
- 39:52let's get to some recommendations. Recommendations. My recommendation is a weird one.
- 40:05I'm going to preface this by saying I don't like the way it's written,
- 40:07but I think the premise is fun. Okay. And that is a book
- 40:10called The Cipher by Cath Koja. Okay. It's a pretty gratuitous horror book.
- 40:16Like it's like it kicks off right away that it's a horror book.
- 40:20The idea is that a hole has opened up in a storage room in this
- 40:24couple's apartment building. It's a black hole that seems to go nowhere, and
- 40:30they don't know what it is, and they kind of experiment to figure out
- 40:34what's going on, what's happening with what it might be about. It's like
- 40:37very like body Horror, so like there's just like weird, gross out things
- 40:42that happen in it. I think the thing I don't like about it.
- 40:44It's kind of written a little bit like Stream of Consciousness. But the premise
- 40:46is cool because it's kind of like it never explains where the hole came from,
- 40:51what it is, why it does what it does, what it does
- 40:54what it does, but it is pretty freaky, and I think it's it's
- 40:58a fun read. It's not a long read, doesn't take very long at
- 41:00all, but it is like an interesting read around like the idea that like
- 41:04what happens with obsession, Like you find this thing and you are obsessed with
- 41:07it, and how obsession can destroy you or strengthen you or do any of
- 41:12these things. So there's like a really cool theme to it. But yeah,
- 41:15I thought it was pretty interesting and it was something I had just seen
- 41:17as like a recommendation on book talk, yeah you know, and they were
- 41:21like, hey, try this, and I was like, oh, I'll
- 41:22check this out. And it was it was pretty good. It was a
- 41:23decent read. Okay, he hell, is this book out of curiosity?
- 41:27It's very very new twenty twenty two. Oh okay, So there was there
- 41:30was a horror movie that came out a few years ago that had a sort
- 41:34of similar premise, and I want to say it was called Holes, okay,
- 41:37and it was like and just open up this person's apartment or something,
- 41:40and it was terrible and I don't recommend it. I was like, I
- 41:45wonder if the film was inspired by the book, but it sounds like that
- 41:49was not the case. I mean, I don't know. It very well
- 41:52could have been. Maybe it was like a premise that was shared or something
- 41:54like that, or maybe it's just parallel thinking. But yeah, I don't
- 41:58know either way. This one was pretty interesting. I thought it was pretty
- 42:00good. Cool, all right, So this is the Cipher, Yes,
- 42:04the Cipher Okay, and that's Kath Koja was the author. Uh huh yeah,
- 42:08Kathy Koja Okay, gotcha? All right, I'm recommending a movie called
- 42:14No Hard Feelings. This is like a coming of age comedy sort of movie.
- 42:20Interesting cast in here, so we've got I think largely the lead in
- 42:22here that most people will recognize as Jennifer Lawrence. Opposite her is an actor
- 42:27who I don't think I've seen before named Andrew Barth Feldman, and then some
- 42:30other notable ones Natalie Morales, Matthew Broadrick, Scott MacArthur, Kyle Mooney is
- 42:36in it, Hassan Minaj, the comedian, So there's like a pretty decent
- 42:40smattering of recognizable names in here. It's just I guess I can give away
- 42:46the promise because it's pretty much dated right up front. The ideas these people
- 42:51want to hire someone to date their son, to get him out of a
- 42:53shell because he's very introverted and closed off, and hilarity ensues. Will put
- 42:59it that way. It doesn't have a great rating on IMDb, but I
- 43:01actually thought it was extremely funny. I will warn people there's this is on
- 43:07the raunchier side of comedies. If that's a thing that you don't like,
- 43:10then you probably won't enjoy this. But I thought it was very funny and
- 43:15enjoyed it a lot. So and it's just a quick, you know,
- 43:16a little easy comedy to go consume. So if you're interested, go check
- 43:20out No Hard Feelings. I think at the time at the time that we're
- 43:23recording this. It's on Netflix, but it's out there, it's around,
- 43:27you can get it. Yeah. I've heard it's pretty funny. I've heard
- 43:29it's pretty pretty entertaining. I enjoyed it. Yeah, I think that's what
- 43:31we have to say about romantic comedies and horror books, if you would like
- 43:36to tell us about those things or not really, I mean it's kind of
- 43:38rom comments mostly just a comedy, But if you would like to tell us
- 43:42about those things, or about thumbs or evolution or apes or anything like that,
- 43:45then we would look forward to hearing from you. If you're going to
- 43:47write us about evolution, then it will land on deaf ears or i mean
- 43:51creation evolution. We want to hear creation creationism, it will land on the
- 43:53tears. You can write us all you want, but I'm going to ignore
- 43:57you. Anyway, you can reach us directly info at w das, wudwwdpodcast
- 44:00dot com. Of course, you can reach us on the social media platforms
- 44:04and interact with us there if you again. I'm just I'm looking for a
- 44:07creative or not creative, but like constructive criticism and comments, and of course
- 44:13heaping amounts of praise are always welcome so those things you can do those things
- 44:15there. Yeah, and then as I said, all the other support things.
- 44:20Is there anything that I'm missing or anything you'd like to add before we
- 44:22wrap this up? Shane, I got nothing on my end, okay,
- 44:24And we can wrap this up because we can use wrapping paper because we have
- 44:29thumbs, so we're going to do that thing. But anyway, that's all
- 44:30I have to say. This is Abraham, mister Shane. We're out.
- 44:35See yup. You've been listening to Why We Do what we do. You
- 44:38can learn more about this and other episodes by going to WWD WWD podcast dot
- 44:45com. Thanks for listening, and we hope you have an awesome day