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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 16 Nov 2018
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      Here's the results for chemistry, and for physiology or medicine, showing, perhaps, a slight improvement:pic.twitter.com/9SJKd4j4xt

      1 reply 5 retweets 22 likes
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    2. michael_nielsen‏ @michael_nielsen 16 Nov 2018
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      What's being plotted: the probability a discovery made in that decade is ranked above discoveries made in other decades.

      2 replies 4 retweets 16 likes
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    3. michael_nielsen‏ @michael_nielsen 16 Nov 2018
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      The kicker is: the amount we're investing in science has gone up enormously (think 10-100x) over the same time period, whether you look at $, number of scientists, or number of publicationspic.twitter.com/9gBu2FREw0

      12 replies 17 retweets 69 likes
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    4. michael_nielsen‏ @michael_nielsen 16 Nov 2018
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      We're in an age of diminishing returns to scientific efforthttps://www.theatlantic.com/science/archive/2018/11/diminishing-returns-science/575665/ …

      5 replies 16 retweets 45 likes
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    5. michael_nielsen‏ @michael_nielsen 16 Nov 2018
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      Lots of disclaimers: this is just one metric, there's plenty of shortcomings of the metric. We're very aware of that and discuss this in the essay.https://www.theatlantic.com/science/archive/2018/11/diminishing-returns-science/575665/ …

      4 replies 4 retweets 18 likes
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    6. michael_nielsen‏ @michael_nielsen 16 Nov 2018
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      Nonetheless, the conclusion should be taken seriously, not dismissed lightly. This is in some sense a collective judgement from scientists themselves: science is getting vastly more expensive, and far from accelerating, progress is at best constant (by this metric).

      3 replies 9 retweets 40 likes
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    7. michael_nielsen‏ @michael_nielsen 16 Nov 2018
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      There's lots of corroborating evidence: e.g., the rise in ages at which scientists make key discoveries. Here are the average ages of discovery for early versus recent Nobel prizewinning discoveries. (Jones and Weinberg: http://www.pnas.org/content/108/47/18910 … )pic.twitter.com/vCsj7UNjhU

      4 replies 12 retweets 27 likes
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    8. michael_nielsen‏ @michael_nielsen 16 Nov 2018
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      The rise in size of scientific research teams also suggests it’s getting harder to make discoveries. (Fortunato et al: http://barabasi.com/f/939.pdf  )pic.twitter.com/MPtSlh36IL

      5 replies 12 retweets 40 likes
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    9. David Deutsch‏ @DavidDeutschOxf 24 Nov 2018
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      Replying to @michael_nielsen

      A team can be more than the sum of its members, but the kind of 'breakthrough' made by a large team is never going to be a conceptual one, is it? So this graph may be saying the opposite of what you're assuming.

      5 replies 0 retweets 7 likes
    10. michael_nielsen‏ @michael_nielsen 25 Nov 2018
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      Replying to @DavidDeutschOxf

      We're not particularly assuming breakthroughs are conceptual. I don't really grant your first assertion, either, although I understand the arguments that can be made for it.

      1 reply 0 retweets 1 like
      michael_nielsen‏ @michael_nielsen 25 Nov 2018
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      Replying to @michael_nielsen @DavidDeutschOxf

      On the first assertion, I think examples like (say) general relativity are very interesting. It can be viewed as the outcome of a team, across history - Euclid, Newton, Lobachevsky, Riemann, Einstein (and many, many others, of course).

      7:59 AM - 25 Nov 2018
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        2. David Deutsch‏ @DavidDeutschOxf 25 Nov 2018
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          Replying to @michael_nielsen

          General relativity is. The concepts that distinguish general relativity from predecessors are breakthroughs made by Einstein.

          2 replies 1 retweet 8 likes
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        1. Carlos De la Guardia‏ @dela3499 25 Nov 2018
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          Replying to @michael_nielsen @DavidDeutschOxf

          In that sense, every advance has been the product of teamwork.

          0 replies 0 retweets 0 likes
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