Totally agree on the fluency, the real Satoshi's mother tongue is probably English. Regarding age however, that's absolutely meaningless in this context, I kno

Totally agree on the fluency, the real Satoshi's mother tongue is probably English. Regarding age however, that's absolutely meaningless in this context, I know several people 50 or older that in text are indistinguishable from any younger generation. How you convey yourself in communication has more to do with your peer group and self image than your age. That sort of self-expression is particularly common in several generations techies, geeks, psychonauts, surfers, hippies and travellers.