> It takes much less effort to colonize a new star system than to
> obliterate
> every competing intelligence or SI in one particular system. Once such
> a
> colony is established, it is much easier to defend it than to attack
> it.
...which supports the claim that the smart stategy is to prevent the
rivals from arising, here on earth, in the first place.
Nicholas Bostrom
http://www.hedweb.com/nickb