913 karma · joined September 6, 2023
> Me: Just because mistakes can be avoided and some people are better at avoiding them than others does not change the fundamental issue: drugs, tobacco, gambling, and TikTok are trying to increase the rate at which mistakes are made. Wouldn't you rather live in a society where they aren't out to get you?
I think there's an argument that can be made, like, "well maybe 10% of the time people consuming alcohol is a mistake, but I just use it recreationally. The government shouldn't prohibit all drinking!" And sure. If it is really the case that people would take the same actions even if they had more time to think things through and were in a good mental state, the government should probably not be intervening for the 10% of the cases that doesn't hold. But you have to draw the line somewhere.
Not so. I think your logic is that engagement often leads to dollars, and the "basic imperative of any company" is to make dollars. There are pro- and anti-social ways to do this. You can create better art for your video games, or you can insert gambling mechanisms. You can spend more time designing your cinematic universe, or you can put a cliffhanger after every episode. You can make a funny skit, or you can say, "wait for it... wait for it... you can't believe what's about to happen!" Optimizing for engagement, for the sake of engagement, is necessarily anti-social. It's trying to redirect attention towards your media without actually making the user experience better in any way.
Legally, the basic imperative of any company is to make dollars, as long as it is prosocial. You should not expect the government to turn a blind eye to scam centers or disfunctional products. The same applies to the media landscape.
"Chinese Universities Surge in Global Rankings as U.S. Schools Slip"
https://www.nytimes.com/2026/01/15/us/harvard-global-ranking...
They say Chinese elite universities are surpassing American ones in research and funding, and that 20% fewer international students enrolled in American universities in 2025. Though, of course, that was right after Trump took away Harvard student visas.
I think it is difficult to find data on this, as there are not many international assessments at the university level. You can look at research output, but research is kind of bullshit these days, and even if it weren't, it would be skewed by the older generations. You can look at international competitions, but does America do poorly in the ICPC because they're worse, or because they don't care? Brigham Young University (a small-fry religious school in Utah, USA) got a bronze medal a decade ago, significantly better than their other universities. If you investigate a little further, you'll find this university did decent at the Putnam around the same time, so they probably just had a few students who really tried hard. It's known that MIT dominates the Putnam, but that is now literally a self-fulfilling prophecy. I know many math people who chose MIT above other schools because it is the place Putnam winners go.
One thing you can look at is the graduate body composition. At elite universities, around 40% of graduate students are foreigners (compared to 30% 50 years ago). Across all universities, nearly half of PhDs are awarded to foreigners. However, this does not really prove American undergraduate students are falling behind, and it mildly supports the case that American universities maintain their prestige. I actually believe American universities do still maintain their prestige, just that they are more of a paper tiger than Americans like to believe. Almost like MIT with the Putnam, everyone goes to America because everyone goes to America.
Well, that plus a ton of investor money floating around. The dollar hegemony is still going strong, and while the invasion of Venezuela shows it might be a little weaker than the average American hopes, they're not going to let it go away without a fight.
Yes, this is still true, and why immigration to America maintained its previous momentum. It was often easier to get a student visa than a different immigration visa, so for the past 30 years or so that has been the primary route, and in turn has raised the prestige of American universities.
However, if you look at the American-born population, their students are not impressive. Quite the opposite, for how much funding their education gets. And—by federal interest—only ~10% of the undergraduate student body can be foreigners. Professors at American universities routinely complain about their students' low standards. Things are not the same as they were ten years ago, let alone thirty or fifty years ago.
I think international sentiment has not shifted to the point that this is common knowledge—that if people want to go international, they better attend a school in China or Switzerland—but it would have happened in a few years with or without Trump, and the decline would be as apparent as the primary and secondary school decline has been.
- If det M = 0, then M is not invertible. Knowing this is useful for all kinds of reasons. It means you cannot solve an equation like Mx = b by taking the inverse ("dividing") on both sides, x = M \ b. It means you can find the eigenvalues of a matrix by rearranging Mx = λx <--> (M-λI)x = 0 <--> det M-λI = 0, which is a polynomial equation.
- Rotations are volume-preserving, so the rotation group can be expressed as the matrices where det M = 1 (well, the component connected to the identity). This is useful for theoretical physics, where they're playing around with such groups and need representations they can do things with.
- In information theory, the differential entropy (or average amount of bits it takes to describe a particular point in a continuous probability distribution) increases if you spread out the distribution, and decreases if you squeeze it together by exactly log |det M| for a linear transformation. A nonlinear transformation can be linearized with its gradient. This is useful for image compression (and thus generation) with normalizing flow neural networks.
I would be okay with people spreading beliefs that only hold themselves back, especially if it made them happier. However, I draw the line when they endorse antisocial behavior. I've personally been negatively effected by these hustlers' acions. Almost everyone has, whether or not they can articulate why it seems impossible to get interviewed for a job these days.
I think it's possible to punish people who are taking these selfish actions, and I think universities should. Maybe they should make a secret database where they list the people who applied to their university, and subtract off points for every other university they applied to. Or, recruiting agencies can mark down candidates for every other job they are applying to. I don't think they do, and this isn't the startup I want to make or area I want to devote my life to, it just sucks that people are being rewarded for playing negative-sum games.
Did you know that USAMO qualifiers have >50% rate of admission to MIT? IMO gold medalists have >80% acceptance rate, and it's only so low because international admissions is limited to 10% of the student body. Life is only a lottery if you have an unhealthy mindset holding you back from improving yourself. Just because university admissions involve a lot of luck at the bottom does not mean you have to limit yourself to a bottom feeder spraying and praying to get in.
Admissions are sort-of Pareto distributed, so most people admitted were on the edge of being rejected. Since there is a bit of noise in the process, this is why any one individual applying to 10x as many places of a similar tier will be more likely to get into one. But then when everyone does it, no one is more or less likely to get in except those that are actually cooperating with the admissions office. You're burning down the commons for a fleeting bit of warmth. Might I suggest installing a furnace in your house instead?
> (1) education is just a ranking game
> (2) since the point of education is to help people learn
I feel like people who actually believe your situation was for the best must have a certain level of cognitive dissonance. Either that, or they just don't actually care about you and feel alright with hurting you for a chance of a slight gain for the people they do care about.
It's also a pretty hard sell to claim these kinds of situations are the best for society. If you could produce 2x as many billionaires by expelling the bottom 10% of the population from the education system (and imprisoning them for life), that would be better for society (financially). It might be worse for social reasons, but I kind of find that hard to believe.
This is why I think empathy doesn't scale. It's much easier to point people's empathy towards the person who is ruining their own life, and many others' at school, because they won't have a happy future. It's much harder to point people's empathy towards someone who will likely be successful in the future, even if they're being beat, stabbed, and abused in the present. Especially if they're not even being physically abused, just imprisoned for half their waking hours in a classroom. Empathy is great in very small groups, but not when you're setting policy for hundreds of kids in a school, thousands in the city, or millions across the state. At that point, empathy just ends up hijacked by the worst actors to redirect attention and resources to their own pet causes.