Roger Penrose

Now according to me, and this is my cosmology scheme, which I'm having trouble persuading the cosmologists about, is that when the universe is rid of pretty well all its matter, it in a certain sense forgets how big it is. Now that's a crazy idea, but you see if you don't have any mass around you don't have any way of scaling the size of the universe, and so it in effect becomes the big bang of the next aeon as I'm calling it – A E O N. So according to my scheme, the universe as we currently understand it, which is from big bang, and then there's this inflationary phase which I don't believe in, which is supposed to take place very, very early on, and then the universe has this more sedate expansion, and then it has another exponential expansion, and that's it. According to me, that's not it. It morphs into the next big bang.

Recorded · Adam Smith, Telephone interview recorded shortly after the prize announcement, Nobel Prize Outreach, 6 October 2020 · source

Well, yes, no, I certainly visualise … it was really … I had to have a very good idea of the geometry – that was crucial. Spacetime geometry so it's not three dimensions, you have to think of the whole four dimensional spacetime, and I get sort of used to thinking about four dimensions and using various tricks to get the picture properly. I do most of my thinking in visual terms, and I'm a very visual thinker rather than writing down equations.

Recorded · Adam Smith, Telephone interview recorded shortly after the prize announcement, Nobel Prize Outreach, 6 October 2020 · source