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hackandthink
2,268karma·1,108submissions·October 2, 2022
recent activity (1,108 total)
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"There are red lines that you can't cross, and open conflict with a nuclear adversary is one of the latter." This is true for NATO powers as well. I can't believe Russia blew it up…
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This guy is smart. Many people profit from cold (and hot) war. "Whether you like it or not, America and Europe have a strategic interest in fueling the Ukraine conflict for reputation-building pu…
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Grothendieck stacks in QFT, did not know about it. This is wild stuff: https://people.math.umass.edu/~mirkovic/0.SEMINARS/1.QFT/C.C... funny names: a Leonard Cohen writ…
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Quantum Computers are a great research field.
The physics and engineering problems are exciting. It's a case for research money.
I wouldn't invest in it but billionaires could spend their mo…
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Which math is most useful? Differential Equations
Statistics / Stochastic Processes
Discrete Math / Algorithms / Logic Solver You do not need CT for all this stuff. Grothendieck needed …
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In computing you can apply Yoneda for optimizations. "Each of the steps is fairly compelling, except perhaps the second one, which rests on the Yoneda Lemma" see "Kan Extensions for Pro…
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I agree: "There's no such thing as a theorem that can only be proven with category theory". But sometimes it feels like Category Theory is rebuilding the world and there are genuine the…
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"A goal of the ACT community is to bridge the gap between theorists using category-theoretic modeling tools and those who want to use the models to say something useful and true about the world&q…
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This is a great paper with great graphs and deep analysis. "Whereas just five years ago, two in five (42%) western citizens held a positive view of China, today the figure is just half that amoun…
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This article is really bad and self defeating: "This does not mean that Mr Putin is about to bow out, be overthrown or fire a nuclear weapon." I don't like Putin as well, but there'…
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This is great: "Jeffrey stop, I'm your moderator, it's enough" ("democratically at home and ruthlessly imperialist abroad")
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Not a sandwich but an equilibrium. What is it good for if there's no mechanism to reach it? "What they’ve found is that some games have Nash equilibria that are impossible for a computer to …
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This makes sense in ZFC. ZFC is a material set theory and is the most common set theory (and foundation). It's different in a Structural Set Theory. Michael Shulman: "Comparing material and …
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Some people think: If you can't compute it, it does not exist. or If you can't compute it, I don't care. Computing and real numbers are a confusing subject. Edit: https://nca…
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"Integers and rational numbers are also reals" Many mathematicians don't think so. Category Theory has a category of sets. Integers/Rationals/Reals are different Objects (sets…
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I agree: "It's the "opinion" of pretty much everyone in the geopolitical community." I disagree: "Hardly propaganda." A loneley voice in the geopolitical community (…
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"And then the question must be asked: is this text here, the one you are reading, not just some kind of propaganda?" I guess you are the good guys. Who pays your bills? Is this post propagan…
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The researchers are amazingly confident. "Our main contribution in this paper is to systematically apply this method, which we call the stochastic experience curve or stochastic Wright’s law to t…
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related: Barry Eichengreen: Dangers of strong dollar https://www.foreignaffairs.com/united-states/dangers-strong-... …
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Shortcut: Annual Life Expectancy declines since 1900. https://www.nature.com/articles/s41562-022-01450-3/figures/6 …
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Mearsheimer got it right already in 2015: "and the end result is that Ukraine is going to be wrecked" https://twitter.com/RnaudBertrand/status/1498491107902062592 …
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Thanks, tried checking this in Kallenberg's Foundation book (Chapter 3) but got lost. I found a free pdf: http://tomlr.free.fr/Math%E9matiques/Math%20Complete/Probabi...…
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John Mearsheimer may be conservative. But he's not far right. And Kissinger is Kissinger.
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It reminds me of Sean Carrols Hilbert Space Fundamentalism. Sean M. Carroll: Reality as a Vector in Hilbert Space https://arxiv.org/abs/2103.09780 …
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Who will buy it? Jetbrains, Vercel, Deno ?
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"Here in the U.S., the war has also exposed the intellectual and moral bankruptcy of an ideologically diverse set of foreign-policy commentators: the “anti-imperialists” who routinely justify bla…