11-05-2019, 12:06 PM
Yes, I think that the 80 year span is a good theory because it is both simple and inevitable. That elder generation had been fading from public life/public influence due to its aging, and now that generation has begun to rapidly disappear. I recall a description of age 80 as the "fragility barrier"-an individual's body has become quite fragile, and he is living on borrowed time, in effect.