Gilbert makes pitch for expanded mass transit in metro Detroit

[takascar]

I don't think these boundaries are particularly important, but the standard ones I've seen are:

Silent - 1928-1945
Boomer - 1946-1964
X - 1965-1980
Millennial - 1981-1996
Z - 1997-2012
Alpha? - 2012-

Nope - generations are 1/4th of the length of a human lifetime - which nominally is pegged at 84 years, so 21 years each, but it depends on the turning's length.

In "The Fourth Turning is Here" [[Neil's latest), he even argues that because lifespans are increasing, that turnings and thus generations are actually LENGTHENING. He suspects that the 4th turning won't be complete till 2032-2033, which would make it 27 or 29 years instead of the normative 21 years. Your time ranges of 15 years only is way too short.