Robert J. Bradbury wrote:
>
> Now, it would appear that the development time for a technological
> civilization from the pre-radio stage to the post-singularity stage
> is ~100 years on a planet similar to ours.
[snip]
> So, for the SETI@home project to work, as has been suggested, by
> "evesdropping" on similar level civilizations, they would have to
> be within ~100 light years of us.
Not quite, I think- the ETIs must only have been broadcasting at the appropriate time vs distance. If a civilization 950 ly away trancended 900 years ago, their "fossil" emissions would still be wafting over us. This increases the number of possible hits significantly.
-- Doug Jones Will design rockets for food.