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Py-o7

HN member
Joined
Mon, Jan 03, 2022, 11:10 PM UTC
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56
Public activity
38 items

About Py-o7

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Recent public activity

  1. comment
    Comment #35033137

    BRK salary is 100k; the corp pays for the private jet ("the Indefensible"). Aside from Berkshire, he also has a personal stock portfolio worth 9 digits or so [in essence due to inv…

  2. comment
    Comment #35022934

    Yea. Most of the media reporting on Buffett is... sloppy to put it politely. The guy lives with Astrid (and some body guards) in a 5 bed house that he sentimentally likes. He also …

  3. comment
    Comment #34823010

    if you read Johnson's work, it's typically both. Direct fructose consumption as well as the polyol pathway being on and your body converting 'extra' glucose into fructose. excess f…

  4. comment
    Comment #34822863

    It seems misleading to call this "symmetry" because what you wrote is not a group. The only idempotent element in a group is the identity. And in abelian groups where the binary op…

  5. comment
  6. comment
    Comment #34550698

    and you can actually use up all the various desaturase and elongase enzymes in the process so that 10% upper bound drops markedly as you consume more ALA. Put differently long chai…

  7. comment
    Comment #34550641

    +1 for Bruce Ames. This idea profoundly shaped my thinking a few years ago. The one nit is I'm not sure how we'd go about testing it.

  8. comment
    Comment #34447073

    Steele's The Cauchy-Schwarz Masterclass is actually quite good and seemingly designed for self study. (A lingering result of this book is I heavily use inequalities even outside of…

  9. comment
    Comment #34444668

    It's interesting. My first instinct was to disagree with this post, but on reflection I think I mostly agree with it. A couple useful mental models are (i) deliberate practice and …

  10. comment
    Comment #34176633

    My understanding of one guess around e.g. annual flu shots is not so much protection from infection as frequent stimulation of the immune system being beneficial in particular for …

  11. comment
    Comment #33928927

    Meat substitutes are ultra processed foods. No real surprises here.

  12. comment
    Comment #33911820

    Kahneman's Thinking Fast and Slow (excluding all the priming stuff) Cialdini's Influence Lewis Caroll Epstein is a very talented writer

  13. comment
    Comment #33897975

    The author is a professor of engineering. A more accurate title would be "I Rewired My Brain to Become Fluent in Math Calculations ."

  14. comment
    Comment #33870789

    What is Mathematics by Courant and Robbins is surprisingly good. For something a little more specific Pinter's A Book of Abstract Algebra would fit the bill.

  15. comment
    Comment #33846759

    > Do round numbers to the nearest whole number [and do not use decimals unless it's money] is very bad advice and may lead to all kinds of inappropriate rounding. Trying to find an…

  16. comment
    Comment #33575603

    There's a lot of literature on various kinds of cardio (esp HIIT and 'zone 2') and lactate production -> BDNF which is loosely understood to be very important for your brain. Some …

  17. comment
    Comment #33180546

    Most people should pay extra attention to #7. E.g. Goodfellow et al did even worse than this sin in the Deep Learning book when they claimed the condition number for a square (but …

  18. comment
    Comment #33124804

    I'd encourage people to actually read the above link. It is very early days and quite far from definitive, but an encouraging attempt that's of special interest for people who are …

  19. comment
    Comment #33124523

    This. I eat tuna at most once a month. You also excrete a lot of metals via vigorous sweating (as well as urine and stool). All the more reason to do sustained cardio (or sauna) pl…

  20. comment
    Comment #33112191

    I was at a talk featuring Richard Thaler a few years ago, and someone in the audience asked a question in a vein that runs through the comments here -- 'is it better to teach high …

  21. comment
    Comment #32567651

    a more persuasive theory imo is that yo-yo dieters that don't do serrious resistance training, have repeated cycles of sarcopenia and osteopenia -- i.e. lose 'good stuff' along wit…

  22. comment
    Comment #32556502

    Of course the article hits on correlation vs causation and gets comments from a body image coach but the author does not talk to anyone doing research on the role of adipokines in …

  23. comment
    Comment #32168630

    My understanding is Buettner is a story teller who doesn't know much about science. His 'findings' are then often portrayed as having some scientific basis but really are much more…

  24. comment
    Comment #32099249

    If people want to know about financial crime (and regulatory dysfunction) in the US, I absolutely second Markopolos's book with no caveats. It's a bit technical but deserves to be …

  25. comment
    Comment #31358382

    > The probability that Elon is margin called by year end is roughly 40% according to option prices. The way tycoons frequently do this involves putting collars around a significant…