Posts

A "slow takeoff" might still look fast 2023-02-17T16:51:48.885Z
How much should I update on the fact that my dentist is named Dennis? 2022-12-26T19:11:07.918Z
Why does gradient descent always work on neural networks? 2022-05-20T21:13:28.230Z
MichaelDickens's Shortform 2021-10-18T18:26:53.537Z
How can we increase the frequency of rare insights? 2021-04-19T22:54:03.154Z
Should I prefer to get a tax refund, or not to? 2020-10-22T20:21:05.073Z

Comments

Comment by MichaelDickens on Disincentives for participating on LW/AF · 2024-03-29T18:30:29.075Z · LW · GW

I find that sort of feedback more palatable when they start with something like "This is not related to your main point but..."

I am more OK with talking about tangents when the commenter understands that it's a tangent.

Comment by MichaelDickens on Disincentives for participating on LW/AF · 2024-03-29T18:29:09.420Z · LW · GW

I wonder if there's a good way to call out this sort of feedback? I might start trying something like

That's a reasonable point, I have some quibbles with it but I think it's not very relevant to my core thesis so I don't plan on responding in detail.

(Perhaps that comes across as rude? I'm not sure.)

Comment by MichaelDickens on Post ridiculous munchkin ideas! · 2024-03-27T21:12:42.010Z · LW · GW

I realize I got to this thread a bit late but here are two things you can do:

  1. Pull-up negatives. Use your legs to jump up to the top of a pull-up position and then lower yourself as slowly as possible.
  2. Banded pull-ups. This might be tricky to set up in a doorway but if you can, tie a resistance band at a height where you can kneel on it while doing pull-ups and the band will help push you up.
Comment by MichaelDickens on My Interview With Cade Metz on His Reporting About Slate Star Codex · 2024-03-27T02:00:50.563Z · LW · GW

When the NYT article came out, some people discussed the hypothesis that perhaps the article was originally going to be favorable, but the editors at NYT got mad when Scott deleted his blog so they forced Cade to turn it into a hit piece. This interview pretty much demonstrates that it was always going to be a hit piece (and, as a corollary, Cade lied to people saying it was going to be positive to get them to do interviews).

So yes this changed my view from "probably acted unethically but maybe it wasn't his fault" to "definitely acted unethically".

Comment by MichaelDickens on On Devin · 2024-03-19T00:06:21.267Z · LW · GW

people have repeatedly told me that a surprisingly high fraction of applicants for programming jobs can't do fizzbuzz

I've heard it argued that this isn't representative of the programming population. Rather, people who suck at programming (and thus can't get jobs) apply to way more positions than people who are good at programming.

I have no idea if it's true, but it sounds plausible.

Comment by MichaelDickens on If you weren't such an idiot... · 2024-03-06T21:35:16.789Z · LW · GW

On the note of wearing helmets, wearing a helmet while walking is plausibly as beneficial as wearing one while cycling[1]. So if you weren't so concerned about not looking silly[2], you'd wear a helmet while walking.

[1] I've heard people claim that this is true. I haven't looked into it myself but I find the claim plausible because there's a clear mechanism—wearing a helmet should reduce head injuries if you get hit by a car, and deaths while walking are approximately as frequent as deaths while cycling.

[2] I'm using the proverbial "you" in the same way as Mark Xu.

Comment by MichaelDickens on If you weren't such an idiot... · 2024-03-06T21:30:06.955Z · LW · GW

Just last week I wrote a post reviewing the evidence on caffeine cycling and caffeine habituation. My conclusion was that the evidence was thin and it's hard to say anything with confidence.[1]

My weakly held beliefs are:

  1. Taking caffeine daily is better than not taking it at all, but worse than cycling.
  2. Taking caffeine once every 3 days is a reasonable default. A large % of people can take it more often than that, and a large % will need to take it less.

I take caffeine 3 days a week and I am currently running a self-experiment (described in my linked post). I'm currently in the experimental phase, I already did a 9-day withdrawal period and my test results over that period (weakly) suggest that I wasn't habituated previously because my performance didn't improve during the withdrawal period (it actually got worse, p=0.4 on a regression test).

[1] Gavin Leech's post that you linked cited a paper on brain receptors in mice which I was unaware of, I will edit my post to include it. Based on reading the abstract, it looks like that study suggests a weaker habituation effect than the studies I looked at (receptor density in mice increased by 20–25% which naively suggests a 20–25% reduction in the benefit of caffeine whereas other studies suggest a 30–100% reduction, but I'm guessing you can't just directly extrapolate from receptor counts to efficacy like that). Gavin also cited Rogers et al. (2013) which I previously skipped over because I thought it wasn't relevant, but on second thought, it does look relevant and I will give it a closer look.

Comment by MichaelDickens on Contra Ngo et al. “Every ‘Every Bay Area House Party’ Bay Area House Party” · 2024-02-24T07:48:33.113Z · LW · GW

The contextualizer/decoupler punch is an outstanding joke.

Comment by MichaelDickens on Arguments for utilitarianism are impossibility arguments under unbounded prospects · 2023-10-09T20:49:32.895Z · LW · GW

Based on your explanation in this comment, it seems to me that St. Petersburg-like prospects don't actually invalidate utilitarian ethics as it would have been understood by e.g. Bentham, but it does contradict the existence of a real-valued utility function. It can still be true that welfare is the only thing that matters, and that the value of welfare aggregates linearly. It's not clear how to choose when a decision has multiple options with infinite expected utility (or an option that has infinite positive EV plus infinite negative EV), but I don't think these theorems imply that there cannot be any decision criterion that's consistent with the principles of utilitarianism. (At the same time, I don't know what the decision criterion would actually be.) Perhaps you could have a version of Bentham-esque utilitarianism that uses a real-valued utility function for finite values, and uses some other decision procedure for infinite values.

Comment by MichaelDickens on I still think it's very unlikely we're observing alien aircraft · 2023-06-16T19:42:12.193Z · LW · GW

Ok, fair point, I was going too far in assuming that the sort of engineering necessary was physically impossible.

Comment by MichaelDickens on I still think it's very unlikely we're observing alien aircraft · 2023-06-16T16:45:54.428Z · LW · GW

I think the evidence against (most) miracles is stronger because they violate the laws of physics. Although I think the same could be said for a few UAPs--if a UAP moves in a way that is physically impossible as far as we know, that's strong evidence against it being aliens, because aliens still have to follow the laws of physics.

How would a tic-tac to accelerate at 700g with no visible propulsion, even positing the existence of super-advanced technology? The best I can think of off the top of my head is that it's using an extremely strong magnet to manipulate its position relative to earth's magnetic field. But that would require an absurd amount of energy so it would probably need to be powered by a tiny cold fusion reactor (which may be physically impossible), and it would still need to avoid emitting noticeable amounts of heat, and even if it has some sort of hyper-insulating shell, it would need internal parts that don't evaporate under that much heat, and also need to avoid emitting the massive amount of heat that would be generated by friction with the air.

Comment by MichaelDickens on I still think it's very unlikely we're observing alien aircraft · 2023-06-16T16:37:53.172Z · LW · GW

To add more on "what we don't see": if some UAPs are aliens, why have they been on earth for decades, but they haven't done anything yet other than fly around? Why have they never landed (or, if they've landed, why did they only land at secret military bases)? My prior is that if intelligent aliens visited earth, they would do one of two things:

  1. They arrive in force, and their presence quickly becomes undeniable.
  2. Their scouts arrive and fly around for only a short time.

It seems a lot less likely that they'd arrive, fly around for decades, get spotted several times, but only ever in the distance.

Comment by MichaelDickens on My guess for why I was wrong about US housing · 2023-06-16T16:22:29.560Z · LW · GW

It's weird that the US has such a low price to income ratio and thus such a high rental yield. In an efficient market, real estate investors should flock to countries with high rental yields, buying up housing until rental yields equalize. Why hasn't this happened yet?

Comment by MichaelDickens on Proposal: Butt bumps as a default for physical greetings · 2023-04-02T04:56:09.730Z · LW · GW

I was concerned about the competing standards problem but your comment solves the issue

Comment by MichaelDickens on Exposure to Lizardman is Lethal · 2023-04-01T01:03:36.501Z · LW · GW

If you disagree but can't succinctly explain, I would suggest doing one of these things:

  1. Write a long comment explaining your disagreement
  2. Write a short comment stating your specific points of disagreement, with a disclaimer that you don't have time to fully justify your beliefs

Your comment is being downvoted (I suspect) because it does neither of these, instead it indirectly insults the author without providing any information as to why you disagree. IMO this sort of comment doesn't really contribute anything—all I know is that you disagree, I have no idea what's going on inside your head, so I'm not learning anything from it.

Comment by MichaelDickens on Fake Explanations · 2023-03-17T12:55:31.991Z · LW · GW

Perhaps it's worth distinguishing between two types of "I don't know":

  1. I don't know because I haven't put any thought into it. (This is the type of "I don't know" that teachers rightly discourage.)
  2. I don't know because I have considered several hypotheses, and none of them explain my observations. (For example, my mental model of heat conduction predicts that the close side of the plate should be hotter, not the far side, so that explanation fails.)

Perhaps teachers should encourage students to replace "I don't know" with "my mental model predicts A, but I observe B", which communicates that the student is thinking correctly about the problem.

Comment by MichaelDickens on Using prediction markets to generate LessWrong posts · 2023-03-02T19:26:21.743Z · LW · GW

One concern I have with this method is that it's greedy optimization. The next character with the highest probability-of-curation might still overly constrain future characters and end up missing global maxima.

I'm not sure the best algorithm to resolve this. Here's an idea: Once the draft post is fully written, randomly sample characters to improve: create a new set of 256 markets for whether the post can be improved by changing the Nth character.

The problem with step 2 is you'll probably get stuck in a local maximum. One workaround would be to change a bunch of characters at random to "jump" to a different region of the optimization space, then create a new set of markets to optimize the now-randomized post text.

Comment by MichaelDickens on A "slow takeoff" might still look fast · 2023-02-17T18:39:33.340Z · LW · GW

Thanks for the reply. If I'm understanding correctly, leaving aside the various complications you bring up, are you describing a potential slow growth curve that (to a rough approximation) looks like:

  • economic value of AI grows 2x per year (you said >3x, but 2x is easier b/c it lines up with the "GDP doubles in 1 year" criterion)
  • GDP first doubles in 1 year in (say) 2033
  • that means AI takes GDP from (roughly) $100T to $200T in 2033
  • extrapolating backward, AI is worth $9B this year, and will be worth $18B next year

This story sounds plausible to me, and it basically fits the slow-takeoff operationalization.

Comment by MichaelDickens on Vegan Nutrition Testing Project: Interim Report · 2023-01-23T00:05:17.417Z · LW · GW

Fortified milks usually don't contain much iron. The soymilk in my fridge (Silk unsweetened) has 120% RDA of B12 but only 6% RDA of iron.

Comment by MichaelDickens on Iron deficiencies are very bad and you should treat them · 2023-01-16T17:19:56.704Z · LW · GW

Maybe this is off topic, but if I'm getting tested for iron deficiency, are there other tests it would make sense to do at the same time (if I'm vegan)? I'm optimizing for minimizing number of doctor's visits/blood draws rather than minimizing cost.

Comment by MichaelDickens on Sazen · 2022-12-31T17:46:15.500Z · LW · GW

Without the outline, the stars look really skinny. To my eye, it looks much more like an anteater.

Comment by MichaelDickens on The Fallacy of Gray · 2022-12-02T16:40:21.686Z · LW · GW

A related pattern I noticed recently:

  • Alice asks, "What effect does X have on Y?"
  • Bob, an expert in Y, replies, "There are many variables that impact Y, and you can't reduce it to simply X."

Alice asked for a one-variable model with limited but positive predictive power, and Bob replied with a zero-variable model with no predictive power whatsoever.

Comment by MichaelDickens on MichaelDickens's Shortform · 2022-09-08T15:27:41.366Z · LW · GW

What's going on with /r/AskHistorians?

AFAIK, /r/AskHistorians is the best place to hear from actual historians about historical topics. But I've noticed some trends that make it seem like the historians there generally share some bias or agenda, but I can't exactly tell what that agenda is.

The most obvious thing I noticed is from their FAQ on historians' views on other [popular] historians. I looked through these and in every single case, the /r/AskHistorians commenters dislike the pop historian. Surely at least one pop historian got it right?

I don't know about the actual object level, but a lot of /r/AskHistorians' criticisms strike me as weak:

  • They criticize Dan Carlin for (1) allegedly downplaying the Rape of Belgium even though by my listening he emphasized pretty strongly how bad it was and (2) doing a bad job answering "could Caesar have won the Battle of Hastings?" even though this is a thought experiment, not a historical question. (Some commenters criticize him for being inaccurate and others criticize him for being unoriginal, which are contradictory criticisms.)
  • They criticize Guns, Germs, and Steel for...honestly I'm a little confused about how this person disagrees with GGS.
  • Lots of criticisms of popular works for being "oversimplified", which strikes me as a dumb criticism—everything is simplified, the map is always less detailed than the territory.
  • They criticize The Better Angels of Our Nature for taking implausible figures from ancient historians at face value (fair) and for using per capita deaths instead of total deaths (per capita seems obviously correct to me?).

Seems like they are bending over backwards to talk about how bad popular historical media are, while not providing substantive criticisms. I've also noticed they like to criticize media for not citing any sources (or for citing sources that aren't sufficiently academic), but then they usually don't cite any sources themselves.

I don't know enough about history to know whether /r/AskHistorians is reliable, but I see some meta-level issues that make me skeptical. I want to get other people's takes. Am I being unfair to /r/AskHistorians?

(I don't expect to find a lot of historians on LessWrong, but I do expect to find people who are good at assessing credibility.)

Comment by MichaelDickens on LessWrong Has Agree/Disagree Voting On All New Comment Threads · 2022-06-27T19:20:34.405Z · LW · GW

I am pretty uncertain about whether this change is good, and I don't think anyone can confidently say it is or isn't good. But no other forum with voting does this (AFAIK), so it's good to try it and see what happens.

Something to think about: What sorts of observations might constitute evidence in favor of or against this system?

Comment by MichaelDickens on Say Wrong Things · 2022-06-27T19:13:45.239Z · LW · GW

I agree. OP is saying people should be more willing to make low-confidence predictions, whereas the type of rambling that people do too much of is information-sparse (taking too many words to say something simple). More rambling about meaningful but low-confidence claims, and less meaningless/redundant rambling.

Comment by MichaelDickens on Editing Advice for LessWrong Users · 2022-04-22T18:02:58.592Z · LW · GW

IMO, articles should include TLDRs, but shouldn't just be TLDRs. You have a short, high-context, high-trust summary. Then you write a longer article for people who don't have all the necessary background to understand your summary, or don't immediately trust that your summary is correct.

As a silly example, if you did an experiment to determine the acceleration due to gravity, your TLDR could simply be, "The acceleration due to gravity is 9.8 m/s^2." And for many readers, that's all they need to know. But you should definitely also explain your methodology and present the data from your experiment.

Comment by MichaelDickens on Lies Told To Children · 2022-04-14T19:43:57.310Z · LW · GW

I thought it was obviously fiction, but I didn't know that it was set in Dath Ilan, and the fact that it's set in Dath Ilan would give away that the red hair thing is fake.

Comment by MichaelDickens on Is Metaculus Slow to Update? · 2022-03-28T19:07:07.221Z · LW · GW

You see this sort of thing with acquisitions. Say company A is currently priced at $100, and company B announces that it's acquiring A for $200 per share. A will jump up to something like $170 per share, and then slowly increase to $200 on the acquisition date. The $30 gap is there because there's some probability that the acquisition will fall through, and that probability decreases over time (unless it actually does fall through, in which case the price drops back down to ~$100).

Comment by MichaelDickens on Jetlag, Nausea, and Diarrhea are Largely Optional · 2022-03-24T15:17:05.421Z · LW · GW

I get motion sickness easily, but I don't often suffer from nausea because I avoid doing things that make me motion sick (e.g., reading in the car). If I took anti-nausea pills, I could do those things more.

Comment by MichaelDickens on Jetlag, Nausea, and Diarrhea are Largely Optional · 2022-03-24T03:18:46.376Z · LW · GW

I "know" that nausea can be handled with a pill, but it had never occurred to me to carry around a couple anti-nausea pills.

Comment by MichaelDickens on Before Colour TV, People Dreamed in Black and White · 2022-02-10T05:53:45.857Z · LW · GW

[P]eople don’t know whether they dream in colour. Dreams may not even have associated colours one way or the other! Indeed, when I asked a few friends and family whether they dreamed in colour, a surprising number of them answered “I don’t know”.

I don't know much about the science of dreams, but I suspect that the answer may be that many dreams activate rods but not cones (or, at least, activate the parts of the brain that receive signals from rods). When it's dark, and my cones are not receiving enough light to function, I wouldn't describe the world I see as "black and white"—it seems different than that—but I also can't see color. Perhaps many people's dreams work the same way. (I find that, in many of my dreams, the dream world is dark enough that I can't see color.)

Comment by MichaelDickens on Covid 12/16: On Your Marks · 2021-12-20T21:11:10.062Z · LW · GW

I have a question about COVID spread. Based on what I know of the numbers, the rate of spread + immunity doesn't add up, but my numbers could be wrong.

It seems to me that one of two things must be true:

Before the vaccine launched, r0 was greater than 1, but still low enough that most people didn't catch it. Then, after ~50% of people in the developed world got the vaccine (and ~20% of people had already gotten COVID), r0 was low enough that COVID died out in the developed world within a few months. After the vaccine launched and most people got it, r0 was high enough that COVID continued to spread. Before the vaccine launched, r0 was far higher, and pretty much everyone got it.

But both these things are false. Why?

(One thing that could explain it is that NPIs kept the virus in check, and people started behaving much more riskily after the vaccine became available. This seems intuitively wrong because the vaccine is so much more effective than NPIs but I'm not sure about the numbers.)

(Another possible explanation is that, even though vaccines are 90%(ish) effective at preventing spread, that doesn't reduce r0 by anywhere close to 90%. Which also seems wrong to me but I don't know exactly how r0 works.)

Comment by MichaelDickens on Discussion with Eliezer Yudkowsky on AGI interventions · 2021-11-11T20:25:06.141Z · LW · GW

10 million dollars will probably have very small impact on Terry Tao's decision to work on the problem.

That might be true for him specifically, but I'm sure there are plenty of world-class researchers who would find $10 million (or even $1 million) highly motivating.

Comment by MichaelDickens on MichaelDickens's Shortform · 2021-10-18T18:26:53.854Z · LW · GW

When people sneeze, do they expel more fluid from their mouth than from their nose?

I saw this video (warning: slow-mo video of a sneeze. kind of gross) https://www.youtube.com/watch?v=DNeYfUTA11s&t=79s and it looks like almost all the fluid is coming out of the person's mouth, not their nose. Is that typical?

(Meta: Wasn't sure where to ask this question, but I figured someone on LessWrong would know the answer.)

Comment by MichaelDickens on Covid 7/29: You Play to Win the Game · 2021-08-03T02:42:56.873Z · LW · GW

The high-level explanation I'd give for this is that smart people make better decisions in general, and certain classes of bad decisions are also illegal. So perhaps the reason smart people follow rules more isn't that they're more inherently rule-abiding, but that they behave in more reasonable ways, and rules tend to be reasonable (obviously not always, but they're more reasonable than if they were assigned at random).

Comment by MichaelDickens on Covid 7/29: You Play to Win the Game · 2021-08-02T15:52:22.439Z · LW · GW

Intelligent people tend to be more rule abiding in general

As an aside, do you have a source for this? A quick search didn't turn up anything useful.

My intuition would be the opposite: if people are acting meta-rationally, then less intelligent people should be more rule-abiding because they know they're not smart enough to figure out when exceptions are worth it. But I don't have anything to back that up.

Comment by MichaelDickens on Should I prefer to get a tax refund, or not to? · 2021-01-04T21:30:42.047Z · LW · GW

My attempt to answer my own question:

The preference to get/not get a refund is a derived preference. My true preferences are to both owe and pay as little tax as possible. If I am in a situation where I can change how much tax I pay, but not how much I owe (by setting my withholding), then by maximizing my preferences I happen to minimize my refund. And if I can change how much I owe (e.g., by taking different deductions), but not how much I pay, then by maximizing my preferences I happen to maximize my refund.

Comment by MichaelDickens on Feature request: personal notes about other users · 2021-01-04T21:24:11.961Z · LW · GW

I believe [this](https://www.lesswrong.com/posts/ftbtZy9dBmYC5StQz/lesswrong-v2-0-anti-kibitzer-hides-comment-authors-and-vote) is what you are referring to. I have the same preference as you and I use Marcello's script.