From theoretical standpoint why not jump ahead to antimatter? :)
Electricity is a solved problem, most obstacles to additional power generation and transport are bureaucratic in nature.
Electricity is a solved problem, most obstacles to additional power generation and transport are bureaucratic in nature.
Hydrogen is pretty much a solved problem too. Most of the critics are just stuck in 2010 or earlier.
[1] https://en.wikipedia.org/wiki/Hydrogen_pipeline_transport