Mars life implications

Robin Hanson (
Thu, 8 Aug 96 10:22:33 PDT

Anyone else out there find it improbable that life evolved from
nothing to complex single-cells in the few hundred million years after
the earth and mars cooled enough to support life? Seems more likely
to me that life evolved more leisurely elsewhere and came here.
Anyone know where this view is analyzed in more detail? I know there
are concerns about cosmic rays frying cells in space, but maybe they
can repair fast, or can hide in rocks.

Robin Hanson