Cecil Moore wrote:
John Smith I wrote:
Get real ... fairy tales are best used to amuse children ...

Consider that the earth is about 4.5 billion years old
while the Milky Way galaxy may be about 12 billion years
old, not much younger than the universe itself. Some early
evolved intelligent life forms could possibly have been
seeding our galaxy for billions of years.

We are also discovering "nanobes" so small (20 nm) that
we never realized that they were alive before now. These
critters contain only about 10 DNA molecules.

http://www.nytimes.com/library/natio...e-nanobes.html


Impossible in the first generation if they are carbon based, since you
need a generation of supernovas followed by star forming for that.
There would be a significant delay, very likely about as long as it took
to make us. Of course all bets are off if they are based on some other
chemical starting point.

tom
K0TAR