Eugene Leitl wrote:
> Steve VanSickle writes:
> > that preserved DNA of a wide range of creatures would be nice as part of
> > the "message". And designing a radio that could transmit after 50,000
> > years is an interesting, but I think doable, challenge. Anyone have ideas
> > on how to do *that*?
> You already have good vacuum, why not using a primitive triode-driven
> resonance coil as a simple beakon? Monocrystalline Si, if protected by
> sublimable ice layer should be able to survive that long.
Use a radar corner and it will light up like a flaming beacon to anyone with active sensors. I think we can safely assume that anyone capable of time travel has that kind of technology. On the other hand, I think we can safely assume that any civilization capable of time travel isn't waiting for an engraved invitation from one guy. The gripping hand is that it can't possibly hurt. What the hell, do it.
-- email@example.com Eliezer S. Yudkowsky http://pobox.com/~sentience/AI_design.temp.html http://pobox.com/~sentience/singul_arity.html Disclaimer: Unless otherwise specified, I'm not telling you everything I think I know.