I have Ubuntu running in Parallels on an iMac, retina display, and the Ubuntu fonts seem noticeably less "nice" to look at than the Mac. Now, I didn't take the Pepsi Challenge here, i.e. a blind test, so it might just be internal bias -- but to me, the Mac fonts are noticeably better.
I don't know much about the physics, but it seems like you'd want square miles of solar panels, even in space, and then there's the problem of getting that energy back to earth. On the other hand, in space you'd get a lot of light frequencies that are rarer on Earth. It's not clear to me if those could be harnessed somehow. Regardless, it's a creative idea.
Plate tectonics has everything moving, so although I am an amateur, it seems the fact that the British Isles are moving away from Europe doesn't prove much.