>>11616058yeah, not really
in 1990 you already had pretty usable laptops, touchscreens, and handheld phones
PDAs that were de-facto clunky smartphones in every function already came out in mid 90's
the jump from 1990 to 2020 isn't even close to that from 1960 to 1990
everything we have is 90's tech at the latest, only tweaked a bit and with smaller chips, but we're near the physical limit of that as well