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I found this linked to topic even more interesting: https://en.wikipedia.org/wiki/Landauer%27s_principle https://en.wikipedia.org/wiki/Landauer%27s_principle
by sfeng 10y ago
I found this linked to topic even more interesting: https://en.wikipedia.org/wiki/Landauer%27s_principle https://en.wikipedia.org/wiki/Landauer%27s_principle
- dredmorbius 10y agoThere's a whole slew of interesting tangents off that article along the lines of computational efficiency, yes. Recommended reading.
- 205guy 10y agoIndeed, the idea of information (bits) as entropy is fascinating to me too. And not just Shannon entropy, they're all related somehow. See https://en.wikipedia.org/wiki/Bekenstein_bound https://en.wikipedia.org/wiki/Bekenstein_bound And then there is the fact that life encodes and persists information. There was a recent HN thread that got me interested: https://news.ycombinator.com/item?id=13496133 https://news.ycombinator.com/item?id=13496133 I did read Gleick's "The Information" but was disappointed it didn't dig very deep into the concept. I got further following links on Wikipedia.
- tedsanders 10y agoIn that case, you may also enjoy Bennett's 1982 paper on the thermodynamics of computation: www.dna.caltech.edu/courses/cs191/paperscs191/IBMJTheorPhys(21)905.pdf That said, there are a lot of subtle assumptions wrapped up in the Landauer limit (related to the 2nd law of thermodynamics and the notion of 'erasure') and my personal opinion is that the limit is easily overrated before those subtleties are appreciated.