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primalpoly's profile
Geoffrey Miller
Geoffrey Miller
Geoffrey Miller
Verified account
@primalpoly

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Geoffrey MillerVerified account

@primalpoly

Psychology professor; wrote The Mating Mind, Spent, Mate, & Virtue Signaling. Agnostic centrist into evolution, sex, sentience, freedom & future.

New Mexico
primalpoly.com
Joined September 2015

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    1. Geoffrey Miller‏Verified account @primalpoly 15 Nov 2017
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      50 years ago, the X-15 flew at Mach 6.7. No aircraft since then has ever gone as fast. But why?pic.twitter.com/68bcHBAfR6

      39 replies 40 retweets 129 likes
    2. Scott Ylinen‏ @spylinen 16 Nov 2017
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      Replying to @primalpoly

      Because the marginal utility of hypersonic aircraft was not worth the marginal cost.

      1 reply 1 retweet 14 likes
      Geoffrey Miller‏Verified account @primalpoly 16 Nov 2017
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      Replying to @spylinen

      Sir, that is a hard argument to refute.

      2:00 PM - 16 Nov 2017
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      • Jay Daniel
      1 reply 0 retweets 2 likes
        1. Scott Ylinen‏ @spylinen 16 Nov 2017
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          Replying to @primalpoly

          Yeah, but every 10 years or so some company tries to, and inevitably fails.

          0 replies 0 retweets 0 likes
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