Dr. Kenneth Miller, when talking about evolution and the book of Genesis, has said that if God chose to reveal himself to a tribe in the desert 6,000 years ago, he wouldn't have started out by trying to explain DNA and RNA to them. Instead, he would have said that he made man from dust, (true enough) and leave it at that.
We may now have a similar scientification of the Kryp and Tonn legend. Supermanica says:
"A man who according to a Kryptonian legend became the father of the entire Kryptonian race when he became stranded on Krypton where he encoutered a woman named Tonn who had also become stranded on the planet. (S No. 238/2, Jun 1971: "A Name is Born")."
A new discovery may prove that life on Krypton
could theoretically (Krypton is theoretical anyway) have originated somewhere else, and the "great human diaspora" is not that big of a stretch.
Dr Godfrey Louis has analyzed biological cells that fell over southern India in 2001 as part of a "mysterious red rain," and found that the cells do not contain DNA. Dr. Louis believes them to be extraterrestrial, as they are able to replicate at 300C and could have survived the extreme temperatures found in space. Instead of "great human diaspora," the theory in Superman comics that all human life generated from one source, this theory in modern science is called "Panspermia."
http://news.bbc.co.uk/2/hi/science/nature/6146292.stmFood for thought