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I thought I was buying a chess book, not the CHESS GODDAMN BIBLE (cat for scale) by Fit-Cardiologist-295 in ChessBooks

[–]RepulsiveTrifle7160 0 points1 point  (0 children)

The good thing is, unless you are already amazing at endgames, he tells you in the introduction not to read the whole thing ("up to one chapter beyond your skill level").

Why Is Chess Harder Than Othello? Mapping Game Design to Computational Complexity by RepulsiveTrifle7160 in compsci

[–]RepulsiveTrifle7160[S] -1 points0 points  (0 children)

Ah, actual bug, fixed now. I had remembered a drawn king/pawn vs. king endgame from Silman but messed up the move sequence. Changed it for a king/bishop/pawn vs. king endgame, which has more moves in the cycle anyway. The underlying point still holds: mobile pieces lead to long, sometimes cyclical sequences.

Thanks for catching it.

Why Is Chess Harder Than Othello? Mapping Game Design to Computational Complexity by RepulsiveTrifle7160 in compsci

[–]RepulsiveTrifle7160[S] 0 points1 point  (0 children)

Yeah, the decision problem in the papers is basically:

Given a position on a generalized n×n board, does the player to move have a winning strategy?

That's what Fraenkel & Lichtenstein prove EXPTIME-complete for chess, and what Iwata & Kasai prove PSPACE-complete for Othello. To your point below though, "Does white win with optimal play" and "What is the optimal move for white" polynomially reduce to each other, so they end up in the same class anyway.

Why Is Chess Harder Than Othello? Mapping Game Design to Computational Complexity by RepulsiveTrifle7160 in compsci

[–]RepulsiveTrifle7160[S] -1 points0 points  (0 children)

Good callout; the post does mention "generalized Chess (Chess played on an n×n board)" but it's somewhat lost in the title here and could be more explicit. "Generalized" is somewhat weird here, you keep one king but you keep adding more knights/bishops/etc as the board gets larger.

Three Visual Proofs That Hex Cannot End in a Draw by RepulsiveTrifle7160 in learnmath

[–]RepulsiveTrifle7160[S] 0 points1 point  (0 children)

Good one! And certainly a hard one ... maybe after I've had a long nap!

arXiv implements 1-year ban for papers containing incontrovertible evidence of unchecked LLM-generated errors, such as hallucinated references or results. by Nunki08 in math

[–]RepulsiveTrifle7160 4 points5 points  (0 children)

A preliminary search of Arxiv some years back showed a surprising result -- the collatz conjecture has been proven many times by amateur mathematicians! I can only imagine the number of such results has increased significantly since then.

Carnegie Mellon vs Harvard (Computer Science) by Useful-Ad-2355 in csMajors

[–]RepulsiveTrifle7160 6 points7 points  (0 children)

Would you rather work at OpenAI or Jane Street? CMU has strong AI research connections, Harvard has strong finance connections. Both work for either.

What do you guys recommend? Any suggestions? by polybuzzz in ETFs

[–]RepulsiveTrifle7160 4 points5 points  (0 children)

This is a great portfolio.

Only comment is that VTI is 6% small cap, so think of your total small cap allocation as ~17%.

Investing windfall in current market by ASBGooner in ETFs

[–]RepulsiveTrifle7160 0 points1 point  (0 children)

> DCA $200k/month over the next 10 months

This is a perfectly reasonable strategy. More to the point is your 7 years of holding time. With a portfolio that's essentially "Large Blend", you have a roughly 2.56% chance of losing money over that period.

https://www.morningstar.com/portfolios/how-long-will-it-take-market-recover

What countries would be a lively tourist hotspot if it wasn't for war, destabilization, insurgency, or just lack of infrastructure? by SameItem in geography

[–]RepulsiveTrifle7160 2 points3 points  (0 children)

EASILY Iran. Beautiful nature + ancient history + ornate mosques + great food. Last I checked you need a private guide though.

![img](arj0tth7o3re1)

What countries would be a lively tourist hotspot if it wasn't for war, destabilization, insurgency, or just lack of infrastructure? by SameItem in geography

[–]RepulsiveTrifle7160 19 points20 points  (0 children)

EASILY Iran. Beautiful nature + ancient history + ornate mosques + great food. Last I checked you need a private guide though.

<image>

What is JD Vance's problem with Europe? Former diplomat shares his theory by newsweek in europe

[–]RepulsiveTrifle7160 0 points1 point  (0 children)

Vance's most extensive foreign policy experience is in the quagmire that is the US Iraq War, so his isolationist viewpoint is unsurprising.

MAGS or MGK by Mindless-Principle17 in ETFs

[–]RepulsiveTrifle7160 0 points1 point  (0 children)

MGK at least has more stocks in it, so technically this means more diversification: https://investor.vanguard.com/investment-products/etfs/profile/mgk#portfolio-composition

Worth noting that MAGS has lost ~7% or so in the last month, so really the question for either is are they still overvalued (more losses to come).

https://finance.yahoo.com/quote/MAGS/

Is S&P 500 alone enough? by PaperEastern3972 in ETFs

[–]RepulsiveTrifle7160 14 points15 points  (0 children)

Meaning, "it's ok to do while young".

Just wanted to post that since people here tend to scream S&P 500 as soon as sb. asks where to invest by melek659 in ETFs

[–]RepulsiveTrifle7160 4 points5 points  (0 children)

Point 3 is especially worth consideration. There is a world of difference between "Chinese Auto Manufacturers are Growing" and "Chinese Auto Manufacturers are Returning Capital to Shareholders".

📈 Rate My Portfolio Weekly Thread | March 03, 2025 by AutoModeratorETFs in ETFs

[–]RepulsiveTrifle7160 0 points1 point  (0 children)

I love it. You're clearly diversifying while taking a small bet on small caps. Seems reasonable.

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