In theory we as a species should become 'smarter'
But its largley down to what we call or define 'smart' at the time.
Many of us may be smart enough nowadays to download porn, do algebra and hardwire our flattop!
But many young wizz kids today wouldnt have a clue how to put up a shelf, grow their own food, wire a plug even! lol
I think it all comes down to equal opportunity for all, until people are given a real chance to develop and not dependent on which 'rich' family they are born into or which country.
I'm not sure how true this is. It's true that I do know how to do all of those things, if I don't I improvise and follow my hunch and I usually get it right. But the thing is this knowledge wasn't the standard given out in my generation either, my sisters of that time period and many of my friends also wouldn't have had a clue how to do those things.
So I look at the fact that the kids these days also lack that knowledge and I can't see how it's a standard, there are surely many kids you don't know, haven't heard about, never came into contact with, that do actually know how to do these things.
Humans are nothing if not ingenious at coming up with new on the spot ways of surviving, it's why we are still here.
Don' assume that the kid you see on a pc or game system all day, doesn't actually know how to put up a shelf, or light a fire, because many times they will, if not total knowledge they would have enough of a basic outline to go with.
No one taught me how to change a plug or put up a shelf, or install wiring for new lights, I just watched it done in a movie or a programme, or even in a game, and from there I mish mashed my way to knowing how to do it.
I think if you dumped in the wild I would survive, build a house, kit it out with soft stuff, set a fire, trap animals and make do.