And here is a personal reflection that won't change the world, but it fits into this discussion in a way. I had the luck to be invited on a sailboat way back when and that experience caused me to go get one of my own. There was never a nicer moment then, when after motoring out of the harbor and hoisting sails, I could shut off that noisy, stinky, costly, fossil fuel burner and accelerate thanks to the movement of the very air we breathe.