And I think this is one of the reasons we are seeing so many companies racing to create a commercially viable eVTOL (electric - vertical take-off & landing) product. To me, this transport system only seems to be a solution to the problem mentioned above. I can't see them ever being commercially viable (FAA regulation, power density, etc.) And yet there are a lot of companies trying to make them a reality when really the cities they have renders of with their flashy electric vehicle flying over just need better public transport systems.