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by ben_w
3120 days ago
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That’s the point. The entropy cost thermodynamically inherent to doing a calculation is infintesimal compared to the energy cost of current transistors. From Wikipedia: > At 20 °C (room temperature, or 293.15 K), the Landauer limit represents an energy of approximately 0.0172 eV, or 2.75 zJ. Theoretically, room‑temperature computer memory operating at the Landauer limit could be changed at a rate of one billion bits per second with energy being converted to heat in the memory media at the rate of only 2.85 trillionths of a watt (that is, at a rate of only 2.85 pJ/s). Modern computers use millions of times as much energy. https://en.m.wikipedia.org/wiki/Landauer%27s_principle |
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