Because... aliens

They don't. It's made up.

Well but even if you want to li... fantasize, you have to give some "credible" input as how you know that.

Dunno, that you were in a reptilian press conference and you heard that there. Something.

Even to li... fantasize, you have to know how.

I didn't say it was made up well. :) Most of this garbage turns out to be as incoherent.