Live data from Hacker News

Viewing profile — _alternator_

_alternator_

HN member
Joined
Mon, Dec 06, 2021, 6:10 PM UTC
HN karma
1,903
Public activity
307 items

About _alternator_

Contact: see mbmccoy.dev/about

Recent public activity

  1. comment
    Comment #49221740

    Accurate weather forecasting has been one of the major achievements of the 20th and 21st century. Computing power is a central piece of this story, but it's also important to remem…

  2. comment
    Comment #49025056

    Clench the other fist while writing. This loosens the writing hand. Something in the subconscious releases tension in the other hand. It's a trick I've used with reasonable success…

  3. comment
    Comment #49007746

    What I think is really going on is an attempt to segment the market in favor of Google's strengths. It's a bet that models are "good enough" for many use cases even before they rea…

  4. comment
    Comment #48971178

    I've heard of capture technologies that literally pump organic matter down far enough that it sinks to the seabed (high enough pressure collapses air bubbles and results negative b…

  5. comment
    Comment #48968832

    It seems that we have two different stories here: in one, the new optimization theory represents a stark departure from the prior art, a sort of revolutionary new view of the under…

  6. comment
    Comment #48962368

    Yes, apologies, I didn't read the articles you linked before posting this. I did update the comment. I don't think this changes the point, which is that most optimization methods u…

  7. comment
    Comment #48962340

    I'm sorry this comment didn't sit well with you. My goal was to induce discussion by describing the claimed result (which was buried in the post), not to discourage it. If you have…

  8. comment
    Comment #48961540

    I'll point out that "does not work" is not the same as "not as efficient" :) But it does seem the Adam paper had an error. I think that Nesterov's first order method is the most ef…

  9. comment
    Comment #48959133

    I'd push back on this. Most of the core optimization techniques (eg, ADAM, stochastic gradient descent) are straight out of the convex optimization literature. Generally you need t…

  10. comment
    Comment #48958516

    I know a bit about this field. This conjecture reads as somewhat more niche than the cyclic double cover conjecture recently proved by OpenAI, but nevertheless represents a real co…

  11. comment
  12. comment
    Comment #48935988

    An example that came up in the article is medicine (or more precisely a medical patent), which also clearly has an extremely strong time value, particularly for lifesaving medicine…

  13. comment
    Comment #48935692

    My read was that MC = "market clearing price" not "marginal cost". Being a bit more humble, perhaps the lesson is that the difference between the theory and reality highlights exte…

  14. comment
    Comment #48897305

    The tails could be heavy, it's true. This could make my usual 1-in-1000 heuristic overly conservative. Let's go with that, heavy tails. The data shows we are at something between a…

  15. comment
    Comment #48896866

    Fair, I had to click into the full size (I pinch zoomed on my phone). But now the fact that 1988/1989 are outliers raise a few more questions about the variance calculation. In par…

  16. comment
    Comment #48896324

    With a headline like that the graph should be at the beginning. Usually you'd put it up front and then talk about the graph, not put it at the bottom and talk about how people aren…

  17. comment
    Comment #48885027

    Yeah, interesting finding in the headline, the rest is just Claude.

  18. comment
    Comment #48882238

    Seems to me that both perspectives are true, and the relative importance of the metric incentive vs the discovery incentive varies. But the metrics and rewards are critical to the …

  19. comment
    Comment #48867650

    They can happen mid-year too. They usually don't for this reason, but they can.

  20. comment
    Comment #48865407

    You may be relived to know that Unix epoch time does not have this problem. But you may also be horrified to know why. First, epoch seconds are not the numbers of seconds since 197…

  21. comment
    Comment #48851957

    My understanding the problem is that GLONASS is aware of leap seconds at all. It sends messages in UTC, which has this leap second funny business. GPS uses a special "GPS time" (so…

  22. comment
    Comment #48848657

    Glonass is correct. On mobile, thanks for the correction.

  23. comment
    Comment #48847517

    In short, yes, the weather, geology, and signicantly, human movement of water via aquifer draining and dam building, as well as glaicial and ice melts, all contribute to unpredicta…

  24. comment
    Comment #48812544

    A quick skim of the article suggests it's a study of the implications of allowing query planning in programs which are notionally finite but may have unbounded computation. Interes…

  25. comment
    Comment #48777659

    Right. Maybe a better and more humble title is "Identifying General Instances of Market Collusion is NP-complete". Not as headline grabbing, but more in line with the actual result…