"That's Just What You Believe." Here's Actually How I Decide What I Believe (3 Principles)

Chat with Greg Fridman · Sep 10, 2026 · 8m

Someone recently left a comment on one of my videos: "buddy, that's just what you believe." Yes, sir. Here's exactly how I got there, in three principles, plus two stories about being wrong.

⏱️ Chapters

00:00 The comment: "that's just what you believe"

00:12 Today: my belief system, and how I establish it

00:21 The three principles

00:25 1. Base beliefs on evidence and replication, not authority

00:34 2. Hold conclusions provisionally, always open to new evidence

00:52 3. Distinguish consensus from certainty. Distinguish data from interpretation.

01:10 Principle 1: the paver patio story

01:24…