On Sun, 5 Nov 2017, ruth catlow wrote:
Hiya, It's a bit hard to keep up with all the threads here. So hello Rob, Edward, Alan, Pall, Gretta, and all, On 31/10/17 17:45, Rob Myers wrote: MIT has a "Center for Bits and Atoms". Information requires a substrate and will not outlive the heat death of the universe. There's a degree of "so what?" to this - while there is energy left in the universe we can move information to another substrate. Digital information doesn't care what its substrate is. Which makes substrates sad. But information does care that it has a substrate. There's a degree of nervousness to information's nonchalance about this. That's why it has to exist in three places at once...
Not sure where this quote is from (so many quotes within quotes etc.!) but the idea that "Information requires a substrate and will not outlive the heat death of the universe." might be problematic, given that within QM, according to Susskind etc., information can't be destroyed - this has to do with the black hole paradox I think. That doesn't mean it's accessible of course. I Have no idea how this plays out re: the digital, but it's interesting to think about - Alan
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