It's not hard to imagine how far from us the future generations will be. With all the additional environmental factors, plus a governing perspective on parenting that is far from even that of the 1950s, we're looking at an all new kind of human being. Already within the understanding between the present co-existing generations, there is an enormous distance in perceptions and ideals, the consideration of what the meaning of living is, and what the given motivations and ambitions for life really are.
in anthropological terms, it is said that the difference in language in only four generations is so great, that no one would be able to have a conversation with their great-great-great-grandparents. This is at any time in human history, not just the modern world. It may have something to do with why we don't live that long, because once a person is separated from a world they can't communicate with, they lose the will to live.
Novelty, innovation, re-invention, are all normal in human society, but it isn't until a generation reaches middle age that they start to realise that they are being written out of life by the succeeding generation. Every new generation thinks they are the first to do something - quite often they are - but every previous generation fails to be the first to adapt as quickly to the new, to stay relevant to the present. Sometimes the change required is so great, it would mean the decimation of not only personal identity, but the soul.
To become something entirely other than anything you have been before.