Uhm I have never experienced 4 mph except in metro Denver, and the slower speeds in traffic are where more accidents happen anyway and there are more problems. And yes I used to make the drive fairly often.
I would guess that the self driving card hardware bugs have been ironed out by now where as the other was in the very beginning development from ground one. Different stages have different requirements.
Up until you started talking about renting bring a firm of lending you were on solid ground. Your thoughts on the desire for high scale residences are in the right direction but renting isn't the problem the greed is.
I was wondering what adding solar cells would do to the flight distance of the vehicle, there would be a gain, but would it be a big enough difference. If it gave a more than a 5% increase I think it would be help full enough to look into. And if it was designed more like a glider you could get even more out of it since the batteries would charge when the plane was in a glide.
Speaking as someone who has been diagnosed as both asbergers affected and adhd affected, much of the diagnosis are false and the children are just rambunctious children who haven't fully grown into their bodies. I'm not denying anyone who really has it from getting what they need. But most of the time children don't need medication or special therapy just good parenting. As I came to adulthood I still exhibit some mild tendencies but nothing compared to what I was being diagnosed with. I know a few other people with aspergers and autism and the more parental involvement the better they turned out as well.