it's really an empirical question, and it's by no means a strange one.

are people born in the 80s more like people born in the 70s or more like people born in the 90s? you've been told for decades that they're more like people born in the 90s. you were told this before we were old enough to vote, and have been told it ever since.

but, it's really equally likely that people born in the 80s are going to be more like people born in the 70s, isn't it?

people are individuals; i'm talking statistics, i'm talking aggregates.

but, i'm certain that the data will tell you that the generation does not turn around 1980, it turns around 1990 - that's when the cusp really asserts itself. if you were born in 1990, you were 15 when youtube launched & in high school when facebook asserted itself. and, you actually grew up with netflix & google.

that means that these "milennials" don't actually exist - that the older ones are really just a part of gen x and the younger ones are a part of the next generation.