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superprime

HN member
Joined
Wed, Jan 25, 2012, 10:11 PM UTC
HN karma
83
Public activity
34 items

About superprime

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Recent public activity

  1. comment
    Comment #7583754

    The underlying idea is that a dollar today is worth more to you than a dollar tomorrow (all else equal). The NPV is how much a thing is worth/costs now after taking that into accou…

  2. comment
    Comment #7347770

    At large enough size, commission/trading costs are not necessarily a significant factor--individuals are just not great at stock picking and timing the market.

  3. comment
    Comment #6968359

    Let's say I sell you an option to buy (from me) a share of TWTR at $100 at any time through the end of January. I have just sold you a call option. If I already own a share of TWTR…

  4. comment
    Comment #6929853

    They work, but they are "mailto:" links.

  5. comment
    Comment #5919663

    It is not denominated in USD. It's a currency, and like any other currency you can exchange it for others, including USD, which is why you often see exchange spot prices in USD.

  6. comment
    Comment #5658344

    It's obviously a coin made out of a bit of metal.

  7. comment
    Comment #5537871

    I've used it the correct way only to have people try to correct it with the (traditionally) wrong pronunciation.

  8. story
  9. comment
    Comment #5512798

    One of my favorite tweets is by Ed Felten: "If n > 2, then a^n + b^n does not equal c^n. I have discovered a truly marvellous proof of this, which this tweet is too small to contai…

  10. comment
    Comment #5464543

    It's not about the cost of college, at least here. Places like Stanford and Princeton have generous enough financial aid programs that if you can't pay for it, they will (presuming…

  11. comment
    Comment #5418726

    Arbitrageurs, not speculators.

  12. comment
    Comment #5302055

    Sacrifice by definition must be voluntary, otherwise it's just servitude, so saying he volunteered is not a good argument against calling his service sacrifice. Likewise breaking t…

  13. comment
  14. comment
    Comment #5237053

    These seem like things one should basically be doing anyway.

  15. comment
    Comment #5230054

    I actually started wearing a watch regularly a couple of years ago after thinking a cellphone was enough for a long time. There are a couple of advantages: it looks good (maybe the…

  16. comment
    Comment #4856428

    The article links to the book's (free) download page: http://10print.org

  17. comment
    Comment #4610458

    It's not really his idea, but it's probably a good one. I remembered it as being called a Tobin tax, but that really only applies to currency exchange. Instead, it's just a securit…

  18. comment
    Comment #4573276

    You can use mod_ssl: http://onlamp.com/onlamp/2008/03/04/step-by-step-configuring... . Other good resources are an easy search away. There are basically two steps, both of which ca…

  19. comment
    Comment #4374056

    this may have a wider impact, what with "a butterfly flapping its wings in Japan"

  20. comment
    Comment #4374049

    just wondering--is there a reason the field name "Craft" is capitalized, but "name" is not?

  21. comment
    Comment #4348582

    many, if not most, ibanks have twitter blocked.

  22. comment
    Comment #4221184

    Yes, they basically don't say what they're going to spend the money on. But it may have been (they hint at this) that they didn't need or want the funding so much as to have AH inv…

  23. comment
    Comment #4171792

    Here is an explanation from Matt Levine: http://dealbreaker.com/2012/05/the-tale-of-a-whale-of-a-fail... . And one from Lisa Pollack: http://ftalphaville.ft.com/blog/2012/05/11/996…

  24. comment
    Comment #4132881

    It's also definitely a misuse of 'zeitgeist.'

  25. comment
    Comment #4101749

    it sounds like you've also been persistent.