When you ask how much better can they get ... there is really no end to it. There are temporary limits, for the time being, having to do with limits in imagination and the capabilities of technology at the present time ... BUT ... as time goes on, those limits keep being extended. I don’t think there are any limits in the long run!
I don't either.........Consider this, there are still people living in this country who actually had to rely on a horse and buggy to get to town on Fridays to purchase their supplies.........