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Jan 21, 2011 at 2:09 comment added Peter Shor There has been some research on making low-energy computer chips using ideas from reversible computation, where reversible steps take considerably less energy than irreversible steps (although neither came anywhere close to the $kT\,\ln 2$ of Landauer's principle). I don't know whether any companies are currently considering making low-energy chips based on reversibility, though.
Jan 20, 2011 at 16:45 history answered David Harris CC BY-SA 2.5