What we observe as material bodies and forces are nothing but shapes and variations in the structure of space.
Our best theory of describing space at a fundamental level is probably string theory.
From a mathematical standpoint it is possible to have infinite space. In a mathematical sense space is manifoldness, or combinations of numbers. Physical space is known as the 3-dimension system. There is the 4-dimension system, the 10-dimension system.
You have to say now that space is something. Space can vibrate, space can fluctuate, space can be quantum mechanical, but what the devil is it?
I was born in 1960, and space theory, especially in the last part of that time and going into the '70s, space was very relevant at that time. It was on television - all the experiments, the moon landings, everything like that.
Most theorists suspect that space has an intricate structure - that it is 'grainy' - but that this structure is on a much finer scale than any known subatomic particle. The structure could be of an exotic kind: extra dimensions, over and above the three that we are used to (up and down, backward and forward, left and right).
The attitude of the Church was not as dogmatic as is often assumed. Interpretations of Bible passages had been revised in the light of scientific research before. Everyone regarded the earth as spherical and as freely floating in space though the Bible tells a different story.
A straight line is not the shortest distance between two points.
