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Viewing profile — trefn

trefn

HN member
Joined
Thu, Apr 24, 2008, 1:13 PM UTC
HN karma
1,429
Public activity
224 items

About trefn

Cofounder at Mixpanel, YC S09.

ttrefren@gmail.com

Recent public activity

  1. comment
    Comment #39046862

    I wonder if you could make the kite itself lighter than air to avoid issues where the wind dies down? E.g. a kite shaped airship.

  2. story
  3. comment
    Comment #25741884

    The article is an excerpt from the book here: https://mitpress.mit.edu/books/collision-course which appears to have been published in 2014.

  4. comment
    Comment #20742461

    I have a similar tic. I just edit my hosts file to redirect those requests to localhost. Then when I mindlessly navigate to one of those sites it doesn't work and I realize I did i…

  5. comment
    Comment #20276245

    I don't know if the parent comment is correct and that the difference is tax deductible... but if so it is real money. If the marginal tax rate for the Dr. is 50% (like it probably…

  6. comment
    Comment #20227493

    It may just look different now. At my company (Mixpanel), the modern equivalent is our support team, which is filled with smart, hungry people who want to get their foot in the doo…

  7. story
  8. comment
    Comment #20100168

    we're a/b testing the button copy... the Starter package is free and the Growth package pops up a plan builder with pricing. It's complicated because the price is based on your use…

  9. comment
    Comment #20100027

    (founder of mixpanel here) I'm really excited about this release - sampling has been necessary to support some of our largest customers for many years, but has a bunch of issues, a…

  10. comment
    Comment #18800417

    I hadn't heard of this person before, but a couple of points resonated with me: First, the framing of equality and redistribution, and the suggested emphasis on focusing our effort…

  11. comment
    Comment #16936191

    Sabine Baring-Gould is a character in a non-canon Sherlock Holmes novel by Laurie R. King called `The Moor`. If you enjoy fictional accounts of widely knowledgeable characters, I r…

  12. comment
    Comment #14518201

    (I work at Mixpanel) Honestly you could probably write a quick pipeline to dump your json data into Mixpanel and then use JQL -- it would be a little hacky but if you have less tha…

  13. comment
    Comment #13686911

    I just got a Feldgrind after breaking two low-end hand grinders in as many years. I laughed out loud with joy when I first started using it - it feels like a tank in your hand and …

  14. comment
    Comment #13443680

    You should read more about QSBS: http://www.andersentax.com/services/for-private-clients/busi... Under certain circumstances, QSBS (Qualified Small Business Stock) rules will signi…

  15. comment
    Comment #13392563

    Neal Stephenson's "Baroque Cycle" goes into great detail about Isaac Newton's life, and his focus on alchemy and theology. It is of course fiction, but well researched and utterly …

  16. comment
    Comment #12437060

    What's your local community college?

  17. comment
    Comment #11928931

    Those figures were already adjusted for inflation (it says 2016 dollars)

  18. story
  19. job
    Machine Learning Engineer at Mixpanel: Build the Future of Predictive Analytics

    Hey HN, No boring /jobs URL needed here, just a message: I run the Machine Learning team within Mixpanel Engineering. We are a small but impactful team within the company. We envis…

  20. comment
    Comment #10996148

    yes, it's in the works

  21. comment
    Comment #10304358

    thanks, fixed!

  22. comment
    Comment #9996862

    Mixpanel (YC S09) | San Francisco, CA [ONSITE] Mixpanel is growing very rapidly - 13 people at the start of 2013, 36 by Jan 2014, 120 at the beginning of this year. Currently 200. …

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  24. comment
    Comment #9795780

    100 hours is nowhere near enough time to meaningfully change someone's life. You'll spend that long just gaining their trust -- and why should they follow your advice, anyway? This…

  25. story