You know, I shall be fifty in nine months, and although a good deal has changed in my lifetime, a good deal, actually, hasn't, particularly at levels beneath the merest superficialities of society and manners. I, actually, don't see quotidian details changing radically in the next fifty years. Then again, I suppose that view to be informed by my own, historian's habit, and the approach of the Sherlockian - Baker Street Irregular, in American - to fandom (feigning the truth of the canon - the very usage is Sherlockian in derivation - and reasoning from it to such conclusions, as, famously, Baring-Gould's w/r/t Moriarty's background, Holmes' father, and so on.