placatedmayhem

There's no official time frame, so you'll get different answers. Also, generations are somewhat arbitrary delineations that are defined by things other than age, particularly major events and themes that occurred in early life.

For example, it seems that "millennial" is congealing around 1981-1996, at least according to Wikipedia, but there's still variance. https://en.wikipedia.org/wiki/Millenial#Date_and_age_range_definitions

Fewer than originally expected. Apple cut the initial production order[1]. Also, "selling out" is a hype generator now.

[1] https://www.reuters.com/technology/apple-forced-make-cuts-vision-pro-production-plans-ft-2023-07-03/