Report Card for Donald Trump

[Mikebert]

(02-14-2017, 01:44 PM)X_4AD_84 Wrote: Since longevity has increased substantially since the 1930s, and, because people over 70 are taking a much greater role in everyday life than they were back then, perhaps the 20 year "mean" turning no longer works. Maybe it's now 25 years. Back in the Great Power, it was 20 years because the oldest socially meaningful people were in their 80s. Now, the oldest socially meaningful people are in their upper 90s and even a few in their early 100s.
If so, this probably did not happen in a step function. Maybe what we really have is:

1T - 1945 or 46 - 1964
2T- 1964 - 1986 or 87
3T - 1986 or 1987 - 201_
4T - 201_ - ?

In other words, creeping up toward a 25 year mean during the current saeculum.

Of course longevity was much shorter back when generations were 27-28 years long.