When two events (call them A and B) are Mutually Exclusive it is impossible for them to happen together: P(A and B) = 0. The probability of A and B together equals 0 (impossible).
Generation Z. Generation Z (also known as The Founders, Post-Millennials, the iGeneration, Plurals or the Homeland Generation) is the demographic cohort after the Millennials.
I was born in 1985, so I'm not really Gen X or Gen Y. I think those born from 1976-1988 as others have said are kind of our own generation, usually called Generation MTV. I guess we're like Generation Jones of 1954-1967. I'd place the XY line at 79/80 but 76-88 is still its own cusp zone.