Staying alive until the age of 70 or 80 may have something to do with learning as we lived or using common sense, but a lot of it has to do with sheer, dumb luck, surely?
I mean no-one plans to die of cancer at 40, 50 or 60, but we probably all know someone who did.
On the whole our generation expects to live longer than our grandparents, but I don't think I am likely to live much longer than my father, paternal aunt or maternal aunt, as they all lived to the age of 89.
As to what we keep up with of new developments, I have noticed a certain laziness creeping into my life there. I have not (yet) started streaming music because I have a large collection of CDs, or started reading e-books, as having been able to read a conventional book for 70 years, I don't feel the need, but I have just, been forced to downloaded a travel app and ACTUALLY USED IT SUCCESSFULLY twice now, as bus cards are no longer being issued here,
I imagine, I will continue to learn to use the new things I either have to, there being no other choice. or want to, and not bother about others.