Astronomy Cast

Upon researching numbers and attempting to find an overall meaning to them I found 'Astronomy Cast'. Here are a few things that I have found most interesting. ____said that

Randomness of numbers that guide our universe, but by no means dictated by anything we know of. They speak of first, the 3 dimensions of space in the universe. She says there is no reason, within the realms of physics, that states there has to be only 3 dimensions. We as humans cannot see beyond three dimensions because it is hard for us to understand where it plays a role around us. String theory says the higher order of dimensions in a non-spacial area
and we can only see the tips of the strings we would more than
second: