Free thought is a deviation from a structured lining up of dominos. New ideas and invention has never been a linear process, read Connections.
I understand maybe 3 grand ideas of Einstein and how he simply arrived at those new notions. Even he did not see all the ramifications of his ideas nor did he do all the math to prove them.

If you are looking for a simple explanation of everything you too will be as disappointed as Dave. I have NEVER called anyone stupid although it is helpful to answer stupid questions because it takes prior knowledge to learn something new. The trolling of this thread has not helped the spirit of this thread or its potential but it has not defeated curiosity. The trolling is as natural as quantum variation.

Science be it accurate, false or general has affected civilization be it Evolution, Eugenics, or Relativity. It is critical to your present and future.