re: Thanks again...
agreed --- though one has to admit that at interstellar temperatures
(10s of degrees K) and shielding, almost anything not engineered
to be volatile is pretty stable :)
We're thinking about an Icarus submission with fewer of the holds barred
but probably more important is seeing if there's some compelling
physics for the TYPE of message. Once you assume matter
delivery, perhaps there's some physics which points strongly to
a specific message/delivery modality. Now THAT would be cool.
FANCIFULLY, I have high hopes for Nasa's Stardust mission :) Of course,
it might just crash in the desert like genesis :(