At the risk that it might degenerate into too much meta-level academic theorizing, I'd actually be interested in an analysis of generation-analysis itself. The way generations are segmented seems pretty strange, and shifts depending on who's writing, what/why they're writing, and when they're writing it. It'd be fascinating to get some sort of overview of how that process works.

As someone born in 1981, I've ended up in all sorts of buckets. Sometimes '81 is considered the tail end of Generation X. When I was younger, I thought of myself as solidly Gen-X, because "my" culture all seemed to be quintessentially Gen-X culture: Nirvana, MTV, skate-punk, the microcomputer revolution, cynicism about both staid corporate life and the hippie alternative to it, etc. Later I realized that many people considered '81 a bit late for Gen-X, but I had considered myself in it because as a teenager I identified with culture-drivers who were actually 5-15 years older (e.g. Kurt Cobain somehow seemed in my generation at the time, but was in fact born in '67). This article, and some others, by contrast would group me as a Millennial, but many of the other descriptions I've found of Millennials seem aimed at people younger than me, mainly people born in the late-80s/early-90s.