Live data from Hacker News

Viewing profile — bfrink

bfrink

HN member
Joined
Mon, Dec 28, 2015, 8:26 PM UTC
HN karma
40
Public activity
21 items

About bfrink

No profile information was provided.

Recent public activity

  1. comment
    Comment #45353266

    Seems that something's been broken. The normal way to look up ticket images manually at https://wmq.etimspayments.com/ no longer works, returning "Unauthorized" even after properly…

  2. comment
    Comment #43705379

    Indirect rates are negotiated. What are the incentives for the government negotiators to get the lowest possible rate? I honestly don't know; I'd like to understand more about the …

  3. comment
    Comment #42200083

    Programs like Stars College Network ( https://starscollegenetwork.org/ ) and Questbridge ( https://www.questbridge.org/ ) help to bridge this gap in knowledge. They are really good…

  4. comment
    Comment #41703335

    Interesting - I have a contact in the CTLO (the real teaching-oriented group) and they have said they have no contact with the CTME and are discouraged from interacting with them. …

  5. comment
    Comment #41700567

    Agree on the sensitivity wrt traditional (East Coast) media. Imagine what it takes for the president (and provost, and general counsel, and chief communications officer, and ...) o…

  6. comment
    Comment #41380634

    32% of 2023 graduates had any debt at all; the average total indebtedness (over all four (or more) years) of that 32% was $15,896[0]. Not bad for a school that costs $86,886 _per y…

  7. comment
    Comment #41380328

    Caltech accepts a tiny, tiny amount of transfers in total; less than ten per year. The imbalance in transfer admissions is not significant.

  8. comment
    Comment #41305738

    This (seemingly elegant) Virginia-class implementation feels like an inheritance of the Rickover and SUBSAFE philosophy. Not sure how the surface Navy would accept anything less.

  9. comment
    Comment #39948266

    At Caltech, students from families making $90K or below, will receive a no loan financial aid package (package will consist of grants and work-study).[0] [0] https://www.admissions…

  10. comment
    Comment #35433488

    A large Great Lakes cargo vessel was recently completed by Fincantieri Bay Shipbuilding ( https://en.wikipedia.org/wiki/MV_Mark_W._Barker ). Great Lakes vessels need to be built in…

  11. comment
    Comment #27668483

    You mean like this billionaire philanthropist? https://chanzuckerberg.com/science/programs-resources/open-s...

  12. comment
    Comment #26347134

    Value investing like Fama French HML? Value like the factor that's gotten trounced over the last decade?

  13. comment
    Comment #25838453

    Agree - real world discrete things should be modeled as such. If MPV was $0.23, then model $0.23 increments - whether you use fixed point, or the cardinality of increments, who car…

  14. comment
    Comment #25837699

    In your example, you're only a penny off if you truncate 0.199999999999999996, rather than rounding (which is described in IEEE 754!). Here's a real simple example. Let's say your …

  15. comment
    Comment #25835270

    This is a common misapprehension. Yes, fixed precision is great for accounting (like your bank statement) but when you're making a predictive model of asset prices (or higher momen…

  16. comment
    Comment #25443918

    Calcbench ( https://www.calcbench.com/ ) does this, but as others point out, XBRL is a bit of a mess

  17. comment
    Comment #15881711

    There are about 30,000 institutionally-investable stocks in the world. They have ~252 closing prices per year. This is the thing you're trying to predict, so it forms the outputs o…

  18. comment
    Comment #13776064

    I think there are other wealth management-related startups that are actually changing the paradigm, e.g., Wealthfront, whereas (to the extent of my knowledge) Addepar is helping th…

  19. comment
    Comment #13756337

    I think perhaps the worst thing about Addepar is the way it sells itself to prospective (inevitably young) employees: that's it's on a mission to "fix finance." While there are som…

  20. comment
    Comment #12175026

    Kaiser Permanente has just such a project: http://digitalrepository.aurorahealthcare.org/jpcrr/vol2/iss...

  21. story