This is the most amazing presentation on this subject that I have ever seen. I dedicate this post to my friend, Matthew Haile: the kindest and smartest man I know. –C.S.

Note: Billions of light years do not equal billions of years of time that the universe has existed. Light years are a measure of -distance-, not of time. –C.S.

Note #2: The size of something does not indicate the value or importance of anything: a pile of garbage is many times bigger than a diamond, but which is more valuable? –C.S.