Something that has been getting at me is the six degrees of separation and the Milgram experiement.

6 degrees of separation essentially means that each and everyone of us in the world are connected via 6 persons.it was first brought to attention in 1929 by an Hungarian writer.
It's sorta like a family tree but with friends, how it grows and grows and grows.

In the 1950's two mathematician's set out to prove this theory via math. They rephrased the question but to this day have no came up with a mathematical solution to this theory.

In 1967, a man by the name of Milgram came up with the theory that coined "it's a small world after all"

I don't know why these things were on my mind today. I did nothing that had to do with anything that I just wrote about.