Isn't part of the appeal of high speed rail is that you don't need jet fuel to make it go? You can generate electricity (yes I know - still using energy) to get the train there?
I would say that if you can come up with alternative electrical options (solar, wind, etc) travelling by train will one day have to be cheaper than by plane. I know if I could catch a train to Edmonton or Vancouver (or Toronto) that got me there in close to the normal time, I would be all over it. Especially if you are travelling with a family.
It might be that we need to put the infrastructure in now while we can afford it and are capable of doing it...
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