[TopQuark]

Settlement and colonization is what I have in mind.

That well may be, but that's not what you said:

if there are intelligent aliens, why aren't they here? That is what I tried to answer.

[A.J.Armitage]

Don't pull that with me.

I said no more about visiting or making contact than I did about colonization. That comment includes both. To say you answered "what I said" in your answer to a partial component of it is simply dishonest.