> Take air planes. We can't just put batteries in there: too low energy density or something Actually for completion it is a feasible proposal [0] (Obviously n

> Take air planes. We can't just put batteries in there: too low energy density or something Actually for completion it is a feasible proposal [0] (Obviously not for jet propulsion though). [0] https://www.airbus.com/innovation/zero-emission/electric-flight.html https://www.airbus.com/innovation/zero-emission/electric-fli...