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programjames
Joined 695 karma

  1. There typically are, but sometimes the technical solution is bad for those in power, or they're unaware of it, or it hasn't been discovered yet.
  2. Here are three reasons you want to be able to calculate the volume change for arbitrary parallelpipeds:

    - 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.

  3. You are not even talking about the article at this point. "All it takes is for one to work out" is TFT. You are instead saying, "be stoic in the things you cannot effect." The latter is much more defensible, and something I endorse. But if you hold the latter, then all it takes is for none to work out. You would accept none, even if you would prefer one, two, or ten. Your comment is a classic motte-and-bailey defense.
  4. Again, I think you don't understand: your "healthy mindset" here is a vice. I do not think it is healthy to drink away your woes. I also do not think it is healthy to cope by treating your life like a big lottery. As I have said several times, the reason I do not consider it healthy is it does not actually help you get what you want, and statistically will leave most people worse off. Finally, from a societal perspective, just like drunk driving hurts everyone around you, this coping behavior also hurts everyone around you.

    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.

  5. Lol, yes. If you're a selfish egoist, you probably don't want to convert others to your philosophy.

    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.

  6. What do you mean by "a healthy mindset"? It isn't healthy for society. It isn't healthy in the world where everyone has this mindset. It isn't healthy to treat your life as a lottery, hoping for a winning ticket instead of creating that ticket yourself. The fact that you consider applications to be uncertainties in life is very telling. You can make them much less uncertain, if you stop thinking of them like a lottery and start doing the things that prove you are valuable to others.

    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.

  7. You lost something when every other person started doing the same thing. Now you have to write or review ten applications instead of one. Now you're going to get paid less because it cost $20k to hire you instead of $2k. Now your company is going to be filled with like-minded people, "hustlers", who do not know how to improve things themselves, just spray and pray until someone mistakenly rewards them.
  8. Seems like a momumental waste of energy being pushed as "hustling". Applying to college should be cooperative between you and the admissions office: asking, are we a good fit? Applying in the hope they mess up and admit you when they're really better off rejecting you is so antisocial.

    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?

  9. Wow, I really dislike this framing of life as a lottery. Yes, people can get lucky. You could win the lottery. Statistically, someone else will hold the winning ticket, every time. It's even worse, because graduate school admissions and startup success are correlated between attempts. If you bring a shotgun but you're not even aiming at the target, you're never going to hit it.
  10. Sorry, I should make it more clear when I'm being sarcastic. I tried to juxtapose these two clauses as close as I could:

    > (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.

  11. Neither of those are my position. If you're not trying to convince me I'm wrong, that's fine, just realize that Idaho is a one-party state and the Republican Party has the power there to do what they think is right. The only way to influence that is to convince enough people that banning these posters is not right, which I thought was your goal, but I guess political commentary has its own purpose.
  12. You still have yet to actually reply to me and my argument. As I said earlier, you need to improve at this skill if you want to actually convince people their position is wrong.
  13. Talking about the greatness of America has been a theme among Democrats from FDR to JFK, when they spoke about defending and spreading American cultural values like democracy and freedom. It goes back even further to the 1840s with James K. Polk and Manifest Destiny. Banning the MAGA hat in the classroom isn't about political signalling - it's just straight out America hate.

    Do you see how silly you sound? Look, here's my issue with you: I've told you my reasons to oppose MAGA hats and welcome posters in the classroom. You refuse to believe those are my reasons. You're calling me a liar, saying I must secretly be withholding some racist motivated reasoning. I get that there are America haters who want to ban MAGA hats, and racists who want to ban these posters. But you're talking to me, not them. If you can only refute people who collectively share two brain cells, then you're probably just wrong on your position.

  14. You have yet to address or even acknowledge the focus of both my comments: this phrase is a common means of signalling party affiliation. I feel like you need to improve in how you approach these kind of discussions, because you're getting nowhere in convincing me when you come across as not even understanding my argument.

    If your goal is different, maybe to just socially stigmatize people opposed to worlds you prefer, well I guess you're doing fine with that, but you do see how that's problematic at creating consensus, right? And how, the sane reaction is for me to faux-politely call you a shill or a clown. I don't think this is actually your goal (which is why I deleted my previous reply, it was unnecessarily mean unless this is your goal), I just don't think you've really built up your debate toolbox yet.

  15. Read what I wrote:

    > "Everyone is welcome here" is now a callsign for "registered Democrat".

    Maybe it's suspicious that this phrase is able to distinguish Republicans from Democrats, but the point isn't the virtue of the parties, it's that it's one of the most common phrases people choose to use to distinguish themselves as Democrats. If you don't want one teacher walking around with a MAGA hat, but don't have the political power to just ban them from schools, you have to make a treaty like, "we'll ban rainbow capes and MAGA hats."

  16. Maybe I'm too tired to write clearly. I meant, the reason parents have ownership over their children (at least in America) is primarily for ideological indoctrination.
  17. It is in fact the best outcome, because education is just a ranking game, and it's not like you will end up ranked lower in your school. Also, since the point of education is to help people learn, your calmer presence and pro-learning attitude may rub off on the worst students, and their chance of ending up jobless and in prison will go down!
  18. The short answer is people stopped caring about metrics measuring learning, and instead how easy they were to game to support their politics, or make them look like a better teacher or superintendent.
  19. And yet, somehow, there are around a million much higher-quality professors. Yes, you need 5x as many teachers. But you don't find 1 in 5 are at the level of a median professor. You should actually expect more than 1 in 5, given they require less vocational training. There is something fundamentally wrong when you move from tertiary to secondary education, but it isn't an issue of supply and demand.
  20. It is pretty hard for one parent to change things for the better, even if just for their child in one classroom. The administration and teachers have so many other things to deal with. It's much harder to change the entire school culture. You can volunteer, and you should!, but you still won't make as large an impact on your child's education as you would hope. In some ways, this is good, because there are lots of crazy parents out there who you don't want making impacts on your child's education, but it's also bad if you're not that crazy parent.
  21. Isn't this exactly what society is built on though? Mutually beneficial interactions borne of choice, not compulsion? And isn't it the sane, rational thing to do to oppose people who compel you to join their community?
  22. > ...a healthy community hand-picked by parents is not "the real world" though, is it?

    It's much closer to the real world though, isn't it? Your child is likely going to live most of their life in similar communities to them, not a wide cross section of the public.

  23. I don't want the separatism, but I also want the ability to give my kids a decent education. There ought to be some way to determine which is which. Do you have any ideas?
  24. A common justification for group projects was, "you have to learn how to work with people, even people who will not work." Yeah no, that's not the case. People get filtered through a much finer sieve when they're older.
  25. We could all learn from Hengshui.

    (This is kind of a joke, because while the Hengshui school system is much more meritocratic, including in teacher salaries, it's also infamous for a stressful school environment. It's not really a joke though. While there are problems with the long hours, it's definitely better than whatever America has going on.)

  26. > States are saying that schools have to post the 10 commandments

    Yeah that definitely seems against the First Amendment (and Texas' equivalent in their Bill of Rights). I feel like the world makes more sense if you read the First Amendment as a treaty between the Christian sects that were executing one another in the colonies for heresy, rather than y'know what it literally says.

    > when teachers put up a poster about “everyone is welcomed here” showing kids of different colors it’s “too woke”.

    Keep gang signs out of the classroom. In places where university rivalries are high, teachers are also asked to keep ensignia off their doors. It's the same here. "Everyone is welcomed here" (without a cross) is now a callsign for "registered Democrat". Imagine if a teacher put a big "don't trample on me" sign with a snake... I feel like that would send a message other than, "be respectful in class."

  27. Why? How does this benefit the students, except in understanding allusions in books and poetry? Or is that the goal, in which case, sure, but I think Eastern mythologies should be included too.
  28. There is, but lowering standards is a cheap trick to get a bonus/promotion.
  29. My father has a PhD in physics and couldn't really teach me math past seventh grade. On the other hand, my father has a PhD in physics and ran out of math to teach me around seventh grade.

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