You can't beat the speed of the Concorde either, and it was too expensive commercially. Perhaps if we correctly externalize carbon fuels, people will en-masse c

You can't beat the speed of the Concorde either, and it was too expensive commercially. Perhaps if we correctly externalize carbon fuels, people will en-masse choose trains rather than airplanes. I think the work argument gets pretty weak in modern society, where we have automation and most people could afford significant leisure. Sure, perhaps in capitalist reality it is different but it is still a social choice.