Live data from Hacker News

Viewing profile — tjradcliffe

tjradcliffe

HN member
Joined
Tue, Jun 17, 2014, 8:29 PM UTC
HN karma
2,541
Public activity
738 items

About tjradcliffe

Poet, physicist, engineer, author: http://www.tjradcliffe.com/?p=1422

Recent public activity

  1. comment
    Comment #17561885

    "Maybe people intuitively figured out what was up (one of the parameters of the Drake Equation must be much lower than our estimate) but stopped there and didn’t bother explaining …

  2. comment
    Comment #10261384

    This story is a textbook example of bad reporting. The headline and opening paragraph combine two completely different categories of error--"wrong" and "late"--so that it is possib…

  3. comment
    Comment #10230789

    I agree on the phrasing issue. Both there "types" seem to require Bohr's classical observer, but as soon as you assume that observers are classical you've swept the big question un…

  4. comment
    Comment #10188018

    The creation of science depended on a large number of random factors, from Judeic monotheism (or something like it) to the disasters of the Reformation and Counter-Reformation, and…

  5. comment
    Comment #10168586

    Sure you can, unless you're shuffling a perfectly ordered deck. OP was deleted so there may be some context missing?

  6. comment
    Comment #10157819

    That's a very odd observation, because religious people as a population show very slight deviations from non-religious people. It is extremely difficult to tell by observation whet…

  7. comment
    Comment #10090129

    It's a mediocre article. It glosses a bunch of history adequately and then points out a completely different anomaly. By "completely different" I mean "has all the signatures of an…

  8. comment
    Comment #10077061

    Their results may be significant to VCs, but likely aren't to anyone else. They get about a 4% increase in good outcomes, from 23% to 27%, for a 1 sigma increase in expert positive…

  9. comment
    Comment #10070564

    We find it because that's what we're looking for, or inventing. Here's a comparable question: "How is it that we can find an unfathomably small sub-set of possible symbols--a mere …

  10. comment
    Comment #10066003

    Reality is continuous. Human categories--like cancer--only have sharp edges because we draw them with an act of selective attention. The edge of our attention is discontinuous. Not…

  11. comment
    Comment #10065975

    The meaning is not the same because it's very difficult for poor and less educated parents to give their children what rich and more educated parents give them. My kids went to a h…

  12. comment
    Comment #10026010

    Oxygen is not flammable (neither is fluorine... every other element is, in the sense that it forms stable compounds in exothermic reactions with oxygen.) Oxygen is, however, fairly…

  13. comment
    Comment #9991228

    For comparison, the Great Lakes are about 60 m above sea level (Kingston, at the junction of Lake Ontario and the St Lawrence, is at 200 ft). Salt water inundation has not been a p…

  14. comment
    Comment #9991149

    These are lovely anecdotes and he's obviously an interesting and capable story-teller, but he worked very hard to make his nominal epiphany true. The trick of writing in a foreign …

  15. comment
    Comment #9991024

    All knowledge is probability-based. The question is: are the probabilities in this case low (or high) enough to be very interesting?

  16. comment
    Comment #9990963

    My first thought on reading the headline was: hadn't they better get printing working first? I just assumed it still doesn't because after five years or so of not being able to pri…

  17. comment
    Comment #9990944

    I have long suspected that the story of "The Aristocrats" is a hoax, although I've never bothered to pursue the question: https://en.wikipedia.org/wiki/The_Aristocrats_%28film%29 M…

  18. comment
    Comment #9941196

    We could call it cfront: https://en.wikipedia.org/wiki/Cfront

  19. comment
    Comment #9940296

    Yeah, and by the mid-1990's no one was using them, which is the adoption curve that's characteristic of a fad, not an effective method of doing anything useful. Now 20 years later …

  20. comment
    Comment #9940281

    No worse than normal, at least for me. I found the experience dull. Always having some internal auditory stimulation may have been part of the cause of that. Also, I meditate very …

  21. comment
    Comment #9932930

    Extraordinary claims require extraordinary evidence. When we look at the actual history of the Quran--and it has one, just like any other book made my human hands--we find that the…

  22. comment
    Comment #9928237

    This is fairly boring because the "incompleteness" is built in to the Navier-Stokes equation from the off, and we (physicists) have been well-aware of it for over a century. Soluti…

  23. comment
    Comment #9926227

    One might as well say we are hardwired to social stratification (which we almost certainly are) and our language reflects that. Every human society has more-or-less arbitrary rules…

  24. comment
    Comment #9907981

    What is meant here is an ordinary empirical claim that is false, which is unsurprising because it is made independently of any empirical investigation into how we form our notion o…

  25. comment
    Comment #9895372

    There is a certain type of mind that delights in paradoxes, to the extent that even after an explanation has been clearly produced, the person will continue to insist there is a pa…