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Math's Fundamental Flaw

Veritasium7 HN recommenders · recommended in 7 months, 2021–2024
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explainer · general · evergreen · 2021–2024 on HN

Veritasium's explainer on Godel's incompleteness theorems and the limits of mathematical proof, tracing set theory, Hilbert's program and the road to Turing and modern computing.

HN commenters recommend it as a clear, accessible introduction to incompleteness and the self-referential proof idea.

12 comments from Hacker News

@travisgriggs2021-11 · in “How imaginary numbers were invented [video]”

I love Veritasium. Derek has done a number of videos that are awesome like this. The videos are great and educational, but he also manages to subtly weave in an almost spiritual subtext to them as well. For example, in this one, you learn about imaginary numbers in some cool ways, history, how awesome e^ix is, etc, but also this yen-yang balance between embracing not only what is real but taking a chance on what is imaginary. Some of my other favorites: - link - ▶ this video - link - link - link I think he’s going to lose the $10,000 bet on the car though.

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@equanimitivity2024-04 · in “Philosophy is an art”

I used to think similarly, but learning about the proven incompleteness of sufficiently rigorous analytic systems has moved me towards appreciating less rigorous ways of interfacing with reality. Veritasium has a nice video on Godel’s incompleteness theorem. It’s quite ironic that it was mathematically provable that analytic systems can never be complete, and can’t be provably coherent. ▶ this video

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@pandoro2024-03 · in “The complete story of Gödel incompleteness”

It's very entry-level (my level :)) but I found Veritaseum's video about it really clear and instructive: ▶ this video

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@shagie2022-09 · in “Gödel, Escher, Bach: an in-depth explainer”

Veritasium - Math's Fundamental Flaw ▶ this video At 13:46 it gets into the "is there a way to prove every complete statement?" and furthermore goes into the Godel math for "there is no proof for the statement with Gödel number g" where that statement itself has a number "g". The entire video is a good watch though. And the related problem is that with Godel we don't know if math is consistent either.

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@simias2021-10 · in “Where do type systems come from? (2017)”

But what if the statement is "this statement can't be proven"? You haven't proven the statement, you've proven that it can't be proven. See ▶ this video for instance which is (IMO) a fairly good explanation of the proof and why you end up with something both true and not provable. Penrose's "Emperor's New Mind" also discusses this topic at length (within the context of whether human brains can be emulated). I wasn't convinced with his argument regarding AI but his overview of the problem of what's computable and what's not is rather good if a bit dense.

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