From: John K Clark (johnkc@well.com)
Date: Tue Dec 17 1996 - 22:19:09 MST
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On Mon, 16 Dec 1996 Hal Finney <hal@rain.org> Wrote:
>today there are several ideas for FTL travel, including
>wormholes (discussed at length on this list a few years ago)
>and the Alcubierre "warp drive".
It seem that all these ideas need to invoke new physics, at least a little,
at some point or another. For example, Kip Thorne's wormholes need
"Exotic Material", that is, material that has a negative energy density
from light's frame of reference. Nothing like Exotic Material has ever been
observed and there is no theoretical reason to think it exists, but I admit
there is no theoretical reason to think it doesn't either.
John K Clark johnkc@well.com
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