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michael_nielsen's profile
michael_nielsen
michael_nielsen
michael_nielsen
@michael_nielsen

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michael_nielsen

@michael_nielsen

Searching for the numinous. Co-purveyor of https://quantum.country/ 

San Francisco, CA
michaelnielsen.org
Joined July 2008

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    1. michael_nielsen‏ @michael_nielsen 5 May 2018
      • Report Tweet

      I love this fact: average walking speed increases predictably as city size increases, roughly as N^{0.1}, where N is city population. http://www.pnas.org/content/pnas/104/17/7301.full.pdf …pic.twitter.com/LyXYH169UX

      82 replies 1,923 retweets 4,637 likes
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    2. michael_nielsen‏ @michael_nielsen 5 May 2018
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      It's fascinating to see what increases superlinearly (patents, GDP, electricity, crime, AIDS cases) and sublinearly (gas stations, road surface). And, of course, a priori it's not obvious that any of these should be functions so purely of population.pic.twitter.com/73e6PFmT1d

      10 replies 105 retweets 357 likes
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    3. michael_nielsen‏ @michael_nielsen 5 May 2018
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      City 10 times larger? People walk about 24% faster.

      16 replies 54 retweets 247 likes
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    4. 𝔊𝔴𝔢𝔯𝔫‏ @gwern 5 May 2018
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      Replying to @michael_nielsen

      Are you thinking what I'm thinking? We can solve the Bay Area housing crisis *and* obesity public health crisis *and* reduce global warming emissions...

      1 reply 0 retweets 9 likes
      michael_nielsen‏ @michael_nielsen 5 May 2018
      • Report Tweet
      Replying to @gwern

      The new SF rush hour: https://media.giphy.com/media/l0HlHXfD5i0KcCQ5G/giphy.gif …

      10:23 PM - 5 May 2018
      • 3 Likes
      • stephanie [nanowrimo] dena verhoff Michel Teivel
      0 replies 0 retweets 3 likes

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