The reason you don't get flying cars, is the very same, you cant make a lot of other technology. People will want to invent the flying car parking house. And they kind of did - on the 11 of September 2001. You can not hand technology over a certain level to a infantile (nicer sound then retarded) species. Its that simple.

Its already madness to allow wealthy citizens into space. Tesla and Amazon are one freight flight to space, filled with tungsten rods, away from becoming there own nation - with non-nuclear deterrence. That somebody - whoever it is, out there is getting humankinds tech progress to a grinding halt, is a blessing in disguise. We actually do not even get a honest discussion about the risks on this path.

Problem is though, we always scienced our way out of our problems with our volatile nature. Tap some energy here, create some fertilizer there, oversupply solves the problems we do not want to solve. Exponential supply for exponential unchecked demand.

Enter social tech- in theory we could limit ourselves, could curb our demands, could become starving monks in the desert, hypnotized by coloured lights playing across enchanted stones. This seems to be the road we need to take, for the other road to be traverse-able.