trominos's comments

trominos | 11 years ago | on: Ask HN: The “I want to do everything but end up doing nothing” dilemma

There's a more generic term for what you're experiencing, which is "lack of motivation." On some level you don't care much about what you're doing; if you did, I guarantee you wouldn't be paralyzed. When you're motivated, things tend to fall into place.

That's not an indictment of you. Contrary to popular belief, motivation doesn't much come from within. For almost everybody, long-term motivation is about other people: your friends, your community, and the world at large. You'll be motivated to do something when these groups of people push you to.

And the mechanism for that push is almost always the same: status. In the long term, human beings find it very easy to do things that increase their status, and very difficult to do anything else (except for things that are inherently more pleasurable than difficult — but that generally doesn't include studying CS theory).

This is really hard on college students, because even though good grades will increase your status after college, they rarely do much for your status in college. If you're good, professors might care, but the collective student body won't.

The solution is to find people who really care about your performance in your field of study — maybe a professor's lab, maybe a group of high achievers, maybe (ideally) a club with an external goal (e.g. autonomous vehicle club) — and make those people central to your life by spending a lot of time with them. If you do, it'll become natural for you to work hard at your field. Although still, you'll only be driven to do things that directly increase your status in your group.

And of course, this solution can be hard to implement; spending lots of time with a new group of people takes its own motivation. It gets a lot easier after college, though. After college you get a job, and wherever you work, everybody will care about how you perform.

trominos | 15 years ago | on: High Resolution Fundraising

Thanks for the explanation. One thing that's confusing me: if the company gets a Series A round, convertible debt is worse than the equity you would've gotten because you've essentially chosen to invest as a VC rather than an angel (which means you're investing, in all likelihood, at a higher valuation). This isn't true if the valuation cap is sufficiently small, but then why not just get equity out the door?

If the company goes bust convertible debt is worth nothing, like equity.

Where's the upside? Convertible debt seems like a strictly worse investment than stock.

trominos | 15 years ago | on: Ray Kurzweil does not understand the brain

This is like saying that the entire universe can be simulated by using a fundamental theory of physics as source code.

It's (to some extent) true, and potentially interesting philosophically -- but completely meaningless from an engineering perspective.

trominos | 15 years ago | on: Two Envelopes Problem

The flaw in the argument for switching comes in its second line:

"1. I denote by A the amount in my selected envelope.

2. The probability that A is the smaller amount is 1/2, and that it is the larger amount is also 1/2."

If we're gonna be taking expected values we need to assume that the monetary amounts in the two envelopes are generated from a probability distribution on the nonnegative reals. Then the probability distribution for the amount of money in the smaller envelope is going to be some kind of curve (call it S), and obviously the probability distribution for the amount of money in the bigger envelope is going to be the same curve only "stretched out" and "squashed" by a factor of two (we'll call it B).

Now if you say "my envelope contains exactly A dollars," you can tell what the probability is that your envelope is the smaller envelope by comparing the relative heights of the two curves at the value A; let's denote these heights by S(A) and B(A). It is certainly possible that the two heights are the same, in which case it's fifty-fifty that you have the bigger or smaller envelope, the rest of the logic holds, and you should indeed switch, getting an expected return of 5/4 * A.

But it is obviously impossible that in general the two heights are the same for any given A, because then the two probability distributions are the same -- and that can't be true, because B is a squashed, stretched-out version of S, and for a variety of fairly obvious reasons you can't squash and stretch out a finite curve on the positive reals and get the same curve (unless that curve is 0 everywhere). And so we can't conclude that in general you should switch, which is good because if you're not allowed to look at the money before you switch it obviously doesn't matter whether you do or not (unless the people running the game are messing with you).

trominos | 15 years ago | on: Everyone Who Tried to Convince Me to Use Vim Was Wrong

Taking your hands off of home row to get out of insert is also easily soluble -- you can map literally any key combo to esc. I use command-i (on a Mac), which is effortless to type and feels nicely symmetric to using i for insert.

trominos | 15 years ago | on: Chinese philanthropist donates all his fortune

This is a bad idea. Even if we accept that no individual can reasonably spend more than $200 million non-charitably (which is false), super-rich people tend to care deeply about money for its own sake -- I say this from limited but real personal experience -- and the accumulation of money tends to be a major factor in their motivation to continue to produce and to invest. If you impose a $200 million wealth cap, you are going to substantially reduce the wealth production of some of the most productive members of society and dramatically curb certain kinds of investment.

What do you get in return? Essentially the government receives a bunch of claim checks for wealth (remember that "money" itself has almost no intrinsic value; what we're after, from a macroeconomic viewpoint, is a maximal sustainable production of wealth). Your proposal amounts to reducing overall wealth production in exchange for increasing the government's buying power by a comparatively small amount. Forget ethical arguments against it; except in very extreme economic circumstances, it's absurd from a practical standpoint.

trominos | 15 years ago | on: My experiment with smart drugs (2008)

This is a popular argument in support of mind-enhancing drugs in the "real world," and it's completely wrong. You could make almost exactly the same argument in favor of nootropics in schools: "anything that allows the sum-total of human learning to increase at a faster rate is good."

That's just not true in either case. If the widespread use of a substance accelerates human work (or learning) by 10% (whatever that means) but halves life expectancy, it almost certainly isn't good. That's obviously pathological but my intention here is only to show that your argument is bad, not your conclusion.

Moreover, you seem to believe that, outside of schoool, people would only take nootropics if the net benefit to humanity outweighs the net detriment; the real world, after all, isn't a competition. The problem is that it often feels a lot like one. If I'm competing with a coworker of roughly equal skill for a promotion and a nootropic is available to both of us that will increase job performance by 5% but noticeably decrease quality of life -- again, this is pathological -- we're put in a prisoner's dilemma: both of us would much prefer that neither of us take the drug if the alternative is that we both take the drug, but both of us have a strong incentive to take the drug no matter what the other one does.

There's no getting around the fact that allowing nootropics in the real world at least has the potential to instigate exactly the same sort of prisoner's-dilemma-esque mental arms race that allowing nootropics in schools generates. Some of the side effects of that arms race might be good, sure, but some of them might be very bad. This issue isn't anywhere near as cut-and-dried as you make it out to be.

trominos | 15 years ago | on: That Misery Called Meditation

Meditation is learned skill in a way that "running" in your example doesn't seem to be. Ten days of practice is more than just "ten more days of meditation in my life"; it's a hundred hours of improvement. A more reasonable comparison would be to say that a meditation retreat is like going off and doing math for ten days straight. (I've actually done the latter, and it's shocking how much you can learn and improve in a week and a half if you completely dedicate yourself to something. Total immersion really is very very powerful.)

trominos | 15 years ago | on: How to Get Taxed 87% in America

But... HN has nuanced discussions pretty frequently. Right now the top comments in this thread primarily serve to point out the blinkered view taken by the article. HNers love proving people wrong like nothing else, and until that stops being true I don't think this site will really succumb to groupthink. (I admit that groupthink seems like it's become much more common recently -- and, like you? I've particularly noticed it regarding IP/DRM -- but I still generally see the "minority opinion" surfacing when it's actually reasonable.)

All that said, I do think that HNers are way too quick to upvote comments that happen to support their previously-held beliefs even when those comments are extraordinarily lacking in nuance (see: the score on your post). But I don't think that's ever gonna change.

trominos | 16 years ago | on: Ask PG: What's the deal with search on HN?

I'd be careful about messing with points on comments (and with karma more generally).

You might enjoy imagining a forum where smart people anonymously engage in civilized discussion without need for the kind of lowbrow pleasure-center-stimulation that the current karma system provides, but I doubt such a thing could exist; if it did, it would probably be much less exciting than HN. Smart people who enjoy good discussion are still people, and most of what people do is seek out easy rewards.

You've built something almost impossible here: a place where it's very rewarding to say interesting things and very unrewarding, generally, to say uninteresting things. Don't look this gift horse too directly in the mouth. If you kill the point display on comments I think you'll kill a lot of the content on this site.

Not to mention that, though it's easy to make fun of people who get too sucked in to internet arguments, there's frankly nothing wrong with people going out of their way to correct other people and that kind of behavior is pretty fundamental to crowd conversations like HN. It's probably annoying that jacquesm's popular approval forced you to respond to him, but I (and others) enjoyed reading your comment; I think you'd be hard-pressed to show that you writing it was a net loss activity.

trominos | 16 years ago | on: How Dr. Seuss would prove the halting problem undecidable

This is great but (unfortunately) it's not quite right. The author seems to have forgotten the difference between a program without specified inputs -- which can't be said to "halt" or "not halt", because it might halt on some inputs and loop on others -- and a program with specified inputs, which always either halts or loops.

Thus at one point the poem asks whether Q halts without specifying an input to Q. This question is meaningless.

The correct proof is given by BrandonM in a thread somewhere on this page. Check it out. (scott_s restates the incorrect proof above BrandonM, for comparison.)

trominos | 16 years ago | on: Did your boss thank you for coding yourself to death?

Even assuming that this "screwed factor" is something meaningful, you miscalculated it. I think you're trying to find (percentage increase in work over normal hours/percentage increase in pay over normal pay).

If your pay is just a percentage of a company's profits, the amount of equity you hold has no impact on this number. If you working 50% more hours generates 10% more profits (or whatever) for the company, you get 10% more pay for 50% more work, so the screwed factor is 5.

Again, this is assuming that the screwed factor is meaningful in the context of a startup, and it isn't. First of all, the different possible outcomes for an early employee of a small startup can mostly be boiled down to two, maybe three: the startup IPOs and you get rich, it gets sold and you get well-compensated, it fails and you get nothing. Treating your income as a very smooth function of the hours you work is misguided in this kind of scenario.

Second, contributing to a culture of working really hard on the startup (by working overtime) might be more important than the work you actually do in your overtime. Startup employees don't work in a vacuum.

trominos | 16 years ago | on: Why Are Nerds Unpopular, An Alternative To PG's Essay

What? I mean, of course, if you define "nerds" to be "people without social intelligence" you're gonna see that nerds are unpopular. The premise beneath PG's essay (and this one, I think) is that if you instead define "nerds" to be "people with a lot of interest in some academic subject, and/or people who are quantifiably 'smart'" you still (seem to) find that nerds are unpopular.

So are you saying that that's not actually the case, that smart people aren't disproportionately unpopular? Interesting if true. Definitely needs some kind of justification, since it flies in the face of most people's intuition.

I'm not sure what the answer is, but I'm leaning more towards the position that intelligence is negatively correlated with popularity. Smart people aren't necessarily outcasts, but IMX you'll tend to see fewer of them at the top of the popularity curve and more at the bottom than you'd expect from a random distribution. And I imagine that there are a lot of reasons for why this is.

PG's argument in particular is closer to the truth than it seems at face value, I think. He says that smart people's problem is that they don't spend enough time on socializing; I'm not sure if this is really the prime cause of smart people's ostensible unpopularity, but it applies to my experience in middle and high school. My parents were rich enough to send me to good private schools that valued intellectualism (which probably more closely parallel schools outside the US) so I was never really unpopular, but I was definitely less popular than I wanted to be. In retrospect it's pretty clear that I could've been way more popular if I'd doubled or tripled the amount of time I spent on it; instead, I spent my free time programming and doing math.

The only place that I disagree is with PG's rationalization of why nerds don't socialize more. In my case, it wasn't that I wanted to build great things (although to some extent I did). I'm pretty sure it was just that solving math problems was a much more reliable and straightforward endorphin trigger than socializing.

Anyway, all this is to say that a) I disagree with you and b) you should be less pithy and more explanatory.

trominos | 16 years ago | on: Drugs in Portugal: Did Decriminalization Work?

I'm in favor of sweeping decriminalization (and legalization), but the data in this article -- hand-picked, no doubt, by the Cato Institute -- barely suggest correlation between decriminalization and declining drug use rates and stop way before causation.

The only conclusion you can legitimately draw from this, I think, is that decriminalization doesn't result in all hell breaking loose in at least the short term. Which is great! But I'd like to see a more substantial (and, if possible, more neutral) study.

trominos | 16 years ago | on: An Economy of Liars

This is pretty close to not having any regulation at all.

The problem is that investors don't get "consistently burned" by companies with bad practices, they get inconsistently burned. And people are so bad at appropriately estimating and valuing really rare events that, if the burns are infrequent enough, investors will choose options that don't maximize their expected outcome. Leading, in some cases, to disaster.

Note that this wouldn't happen in an ideal market where 1) everybody's perfectly rational and 2) everybody pursues strategies of maximizing their long-term expected finances. But it happens in real life. That's one of the major problems with the financial system as it stands, and (ostensibly) a powerful argument that regulation of some sort is a good idea.

trominos | 16 years ago | on: Dear Apple fans, a plea for reason and civility.

Apple's trying to use its near-monopoly of the handheld software delivery channel to perpetuate its near-monopoly of the handheld software delivery channel. I doubt this is illegal and I don't think it means anything to say that its somehow "right" or not in any universal sense.

But it pisses me off. (It pisses me off because, a priori, I don't think business should be done that way -- but the reason why is sort of beside the point.) And if I can help make even a tiny amount of trouble for Apple over it I'm definitely going to.

The end.

trominos | 16 years ago | on: There's only one homeless man left in Times Square

You've refuted a strawman, but you haven't given an actual justification for the original wording.

Using the phrase "poor people" instead of "poor black people" is equally effective -- more, actually, because "poor black people" makes you wonder why the hell it matters that they're black -- and has the virtue of not perpetuating (many) people's unconscious associations of "black" with "poor".

trominos | 16 years ago | on: American wins $1 million math prize

How so? If a mathematician is good enough to win the fields medal, he (she) can probably have the career he wants.

I haven't done research myself, but I've spent a fair amount of time around researchers in math and the basic sciences and my experience strongly suggests that the purpose of the Nobel etc, insofar as they have any, is not to advance the careers of the recipients (who don't need the help if they're deserving) or to drive the recipients to do better research (the consensus is that, if anything, earning a major prize dampens a researcher's potential, though of course that has selection bias written all over it); the purpose is really to give those researchers who've already reached the top of the playing field something to aspire to. (I used to think these prizes were net losses for science, but over time it's become clearer to me that the role they play is actually fairly important.)

All of this is to say: the actual distribution of prizes is more a necessary evil than anything, and delaying conferral to the end of a person's career minimizes the bad effects of a prize and maximizes the good ones.

trominos | 16 years ago | on: First Clay Millennium Prize goes to Grigoriy Perelman

That isn't the Poincare Conjecture at all... you're asking, essentially, whether a smooth, connected, finite surface has a single local minimum that's also an absolute minimum. That's not a hard question.

The Poincare Conjecture postulates that if any loop on a "nice" surface can be shrunk to a point, it's topologically equivalent to a sphere. ("Nice" here means connected, finite, and without a boundary -- like a sphere or pyramid, but not a disk or infinite plane.) For instance, if the conjecture is true, a cube is topologically equivalent to a sphere, because if you draw a loop on it you can always shrink it down to a point; but a torus (donut) isn't, because a loop around a vertical cross-section can't be shrunk.

Perelman proved the conjecture for three-dimensional surfaces (which are the boundaries of four-dimensional objects).

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