Definition of a Penrose diagram
A Penrose diagram is a kind of spacetime diagram arranged to make clear the complete causal structure of any given geometry. They are an indispensable map for navigating inside a black hole. Roger Penrose, who invented this kind of diagram in the early 1950s, himself calls them conformal diagrams.
In a Penrose diagram:
- Light rays move at 45o from the upward vertical;
- Points at infinity (at infinite distance, or in the infinite past or future) are contained in the diagram.
I have read a few books by Roger Penrose. The way he describes light going through slights, and "How the light knows to do that" had me banging my head against the wall for quite some time. Those books, along with Relativity by Einstein, and A Brief History of Time", by Stephen Hawkings, and Mandlebrot's book on fractals. They make for some good reading, and can allow one to see the world a little clearer.
Penrose converted to Christianity later in life, from what I read, stating the order was too convincing to be random (conceptual phrase). I am not sure of what his epiphany way, but this happens to a lot of physicists, or they end up believing in t least a causal reason for existence. Hawkings has of late gone a different direction, he seems on a search of discovery, a bit all over the place, which with his age and condition would be prudent. I've been doing the same thing for most of my life. Don't have any answers I could share though, just stuff I know to be true, but couldn't prove.
p.s. Really cool by the way!!