Do Space Aliens really exist?

There's a video on the Sixty Symbols channel in which Professor Moriarty (yes, that is his real title and name) talks about the "nothing touches" idea. He's quite irritated by it and explains why in some detail.

https://www.youtube.com/watch?v=P0TNJrTlbBQ

Good video.

I like the entropy one you posted earlier as well. I'm no scientist so it's good too know some of the exact details, i only really know stuff from an overall point of view.

What happens when the universe moves to full entropy then? Pretty fascinating to think, would another universe pop into existence? that's the multiverse theory i suppose (like bubbles in a bubble bath popping in and out)
 
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