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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. Patrick Collison‏Verified account @patrickc Nov 7
      • Report Tweet

      In The Art of Doing Science and Engineering, Hamming gives this amazing sigmoidal formulation for the growth rate of computing power: e^(22(1-e^(-t/20))), with t=0 in 1943. That predicts 2.2 GHz for 2019, with is rather remarkably close to where we are.

      18 replies 74 retweets 735 likes
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    2. michael_nielsen‏ @michael_nielsen Nov 7
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      Replying to @patrickc

      And also remarkably close to the irritating fact that clock speeds seem to have just barely moved over the past 10 years.

      7 replies 0 retweets 33 likes
    3. michael_nielsen‏ @michael_nielsen Nov 7
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      Replying to @michael_nielsen

      There's a lot of what-aboutism in the replies. Saying "but what about parallel computing / pipelining / GPUs / ASICs" etc isn't a response. Ideally, we want faster clock speeds _and_ all those things. Clock speed stagnation isn't something to brush off.

      4 replies 1 retweet 28 likes
    4. Ryan McWhorter‏ @rmcwhorter99 Nov 7
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      Replying to @michael_nielsen

      Is there a hard bound on clock speed other than Planck’s time?

      1 reply 0 retweets 0 likes
      michael_nielsen‏ @michael_nielsen Nov 7
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      Replying to @rmcwhorter99

      It's not even entirely clear that the Planck time is a hard bound, though I guess a lot of physicists would say so.

      6:37 PM - 7 Nov 2019
      0 replies 0 retweets 0 likes

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