Well, for this Christmas season, my thoughts have turned to cheerful topics like genetic meltdown of the human race! Blofeld and friends would have a field day with this one, not to mention Bond's brother, Ernie.
I came across geneticists who have made public what has been an 'open secret' until a few years ago, it seems. Contrary to popular films of mutants, mutations are very very bad guys. Some researchers put the number of harmful mutations each human will pass on to the next generation to 100. Some say 300. In other words, we are not 'evolving' upwards but devolving downwards (genetic entropy, Mr. Bond).
The human degeneration rate is @ 2% each generation. With a 1% decline, there is a sharp decline in fitness after 300 generations, about 6000 years. If true, this corresponds to the Biblical timeframe, hm.
Dr. John Stanford, Cornell (and others) did statistical regressions of the Biblical life expectancies, from Noah's 950 years to today's 70 after 32 centuries.
Remarkable thing about the curve is that it's very similar to theoretical curves from other researchers on genetic degeneration.
And so, if the Biblical timeframe is correct, 4000 years have passed since Noah, so we have 2000 years to go! Actually, I'm not saddened at the news, if true. Reality is reality.