Everything in Nothing

PENROSE: You all have big biceps. strong arm muscles. You're right armed. Because you spend half of your lives scrawling tons of chalk dust, across miles of blackboard. I....don't do that.I have something magic and wonderful to tell you about.It's fast, it's rigorous, and you don't need big muscles.It's called topology.Pictures, not equations.And nothing moves faster than light. 186 000 miles a second, light is the fastest.Easily fast enough to overcome the gravity pull of, say, the Sun, or the Earth, and escape.The speed is high enough to get away from the gravity pulling it back. What if the Sun were more concentrated? What if the Sun were collapsing? The density becomes huge, the gravity pull enormous. Now nothing can stop gravity pulling everything in. Even light.A singularity forms. What is a singularity? A singularity is a place, where matter, light, space, time, everything, fold in on themselves and disappear. It's profound and total nothingness. Everything in nothing. Up until now all of you people, with your big biceps and your big equations have always said: "Oh my big equation is ending in a singularity, I must be wrong!" It's what frightened Einstein. Singularities can't exist because the laws of science don't allow for them. Wrong. Singularities do exist. For perfect spheres, for idealised stars...?No. For real stars.Real stars do it too; singularities are out there. There are places were science and rules break down, where there is no matter, no space, nothing. Where everything, including time, does not exist. And when a star collapses, a singularity is inevitable. Topology doesn't bother with the messy stuff, about particles, and how they move, it's about how things connect. Big thinking. Big bold thinking. It takes you into places where the rules say you can't go. And it's fast. You say that it's fast?