>I don't see how you can say there is no advantage to erasing bits at lower
>temperatures, since your free energy is limitied, and at lower
>temperatures the same amount of free energy allows you to erase more bits.
>The trick is to obtain a low temperature without spending energy on active
>cooling, and that's what a black hole allows you to do.
Whatever you could do by erasing bits at low temperature you could do by
erasing bits at high temperature, and using a heat engine to move free
energy from the low temp source to the high temp source. (Free energy is
defined as F = E - TS, and so how much you have depends on the temp.)
>you're saying is that it wouldn't help to cool your computer to 0.1K if
>the best heat sink you have access to has a temperature of 3K. I certainly
>agree with this.
We agree here.
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