Inexpensive Satellite Does the Job

Lucas Gonze
Sat, 26 Jan 2002 11:04:30 -0500

What's spacetime plumbing?

> Also, superluminal signalling is equivalent to causality violation, so
> don't count on it without fancy tricks like spacetime plumbing. If your
> biological chronon is so short that you can use light for echolocation,
> the only way to keep current is to huddle.