My life has been up and down, but mostly good.  In this blog I've actually said that my life has been in the 99.99th percentile.   But part of that is because, over the course of time,  Homo sapiens  have had 117 billion birth s.  As there are now only 8 billion of us, and life today surely must be a lot better than in the past, that already places me at a great advantage, and you too. I was born in  1940 , a dark period in history when Hitler was conquering Europe.  The #1 song in the USA was  I'll Never Smile Again , by Tommy Dorsey and his Orchestra, with Frank Sinatra and the Pied Pipers. But more than just that, after an acceptable youth growing up in Kakaako ( Honolulu ), not a slum, but definitely below average, I had a great final two years of high school and got accepted at Stanford University. Life was generally fine there.  I read today an entry in  Quora  entitled:   Is Caltech the most academically diffic...