A few more of us that are able, should walk a block or 2 instead of driving. the cost of warming up a car/?, deicing the windshield, Before driving it can be more then the cost of useage to go the short distance.
I recall a young person coming to North America by sail boat instead of flying, however the cost of the high end sail boat energy wise is not cheap and was not taken into account.
People want the newest,latest, greatest cell phone or lap top/computer every year. I really can't find the different between 3G and 5G, other then 2. And it's nice to find new ways to fight with the latest upgrades that I don't need any of in the first place.
Mass transportion is far cheaper then single transport, just everyone needs to want to go the same place, at the same time.
I am not sure how a electric economy can work for food production, but that is one of many things not to my knowledge.
A mix of ways to move and power is the possible way forward, maybe the only way ahead.
Some of the problem with the engines is how much power does it take to move a set distance, how fast to do it, and how much fuel/energy to do it. Many engines use a lot of fuel to do very little.
It was interesting to read about making different types of fuel from CO2., some I was awear of.
Some time ago, I looked into high mileage cars, 80-100 mile per gallon available in Europe, not brought into North America as there was no demand for them, tell you anything?
Yes, the amount of cash is going to control what can power your world and if you can eat or not.
I also am very tired of people that have never done much( anything) complaining about how the world is and how it should be fixed by everyone but them and how "it's" owed to them and they should be given all.
Time for me to stop!