SETI again

problem with this is that the space between stars has few comet and
such

--- In spacesettlers@yahoogroups.com, "Lucio de Souza Coelho"
wrote:
>
> On 7/27/06, Douglas May wrote:
> (...)
> > If a comet/asteroid/brown dwarf or whatever were needed for
material
> > to repair a settlement, as far as we know right now, we would
have to
> > change course and slow down to get it. To slow down in deep space
> > somewhere between here and another star would require a lot of
time
> > and energy. Reaccelerating would also require time and energy. A
star
> > faring civ would likely have both time and energy available, but
> > neither would be unlimited.
> (...)
>
> Of course all those logistic problems would be avoided if
interstellar
> colonization were done by pure diffusion instead of intentional
> star-to-star trip. As you hinted, the interstellar space is full of
> objects (comets, rogue planets, brown dwarfs, etc) and instead of
> saying "lets go to Alpha Centauri" a colony could simply say "lets
go
> to the next comet", with no plan whatsoever of interstellar travel.
> However, by hoping from object to object, refueling, repairing
itself
> and producing new colonies by consuming new sources of raw
materials,