Re: Fermi's Paradox and FTL drives

On Sun, 03 Feb 2008 19:22:08 GMT, Gene Ward Smith <gene@[EMAIL PROTECTED]
>
wrote:
>dbd@[EMAIL PROTECTED]
 (David DeLaney) wrote in 
>>>What the hell is feeble-grade FTL? Why, if it can't handle 
>>>other galaxies, can it handle ours--or is that out also?
>> 
>> I'll take a stab at guessing it means "FTL that's limited to some small
>> multiple of lightspeed, like 100c or 1000c"
>
>Compared to what?

Compared to light, of course.

If you have FTL at _all_, something's come unstuck in relativity anyway,
so
you can meaningfully talk about how long it takes to get between
spacelike-
separated events compared to how long it would take light to get from one
of them to a timewise-connected event to the other one.

Dave
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