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<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">> How many Moore doublings until we reach it ... Robert ... ??<br><br>Seven. Exactly seven.</blockquote>
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<div>I'm sure you're kidding, but I'm thinking: ballpark 10 32-bit GHz per kilogram, current commodity (surely not 100, considering power supply, rack mount, fan, etc). So ballpark 3 x 10^8 bits per second per gram?
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<div>So we're short about 10^39 of Bremermann, so about 130 doublings?</div>
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<div>This reminds me of the story of the guy listening to a cosmology talk, who suddenly jumps up, waving his hand, and says: "Did you just say the universe will end in 10^12 years??!!" and the lecturer replies, "no, no, I said 10^20 years" and the guy sits back down, "whew!" all relieved.
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<div>The number 42 ought to be in their somewhere. </div>
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<div>Peter</div>
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