At the time people were used to constantly increasing access to energy so in their minds we would have almost infinite energy in the future which would make fly

At the time people were used to constantly increasing access to energy so in their minds we would have almost infinite energy in the future which would make flying cars feasible. However most people living today in the west have never experienced increasing access to energy so a future with abundant energy seems much further off than it did 50 years ago. https://en.wikipedia.org/wiki/Energy_in_the_United_States#/media/File:United_States_per_capita_energy_use_1650-2010.png https://en.wikipedia.org/wiki/Energy_in_the_United_States#/m...