Space/Science — HabitableZone

Space/Science » in reply to Don't Take It Personal

That's another limited idea about ETI - and no, I am not taking it personally, either
Socrates II — (archived)

We assume that an alien species is going to colonize the entire galaxy.

Why should they?

We assume they have the same sense of exploration and conquest
that humans do. Plus we also assume that an ETI would want to
colonize the whole galaxy. Some systems may not be suitable for
life, or at least may be too much work to make them habitable.

Plus we assume that advancd ETI would be biological.

And if they came long ago, how would we find evidence for them? And
if evidence were found, unless it was rock solid proof of ETI, no real
archaeologist would dare to suggest such an origin for an artifact.

We assume an ETI would leave unmistakable signs of their presence
for our edification. Not if they arrived millions of years ago, and not
even now if they are studying us.

Someone could have colonized our Sol system, but left and their
artifacts are lost in the rock layers of Earth or may yet be found
on other neighboring worlds - but we are so far away from exploring
the Sol system for that purpose, despite the fact the 2001 said there
was a large black monolith in Tycho 40 years ago.

Log in or register to post.

The whole thread (28 posts)