Maglev could become more common and more effective, but a âno-limitâ battery comes to mind (no resistance=infinite charge) which could make each city or nation own an endless reservoir of energy. Goes well with renewables.
Those are just 2 ideas. Iâm sure there will be a lot more.
EDIT: ignore the âno limitâ battery, thatâs a mistake. I mixed resistance with charge and made a stupid and wrong statement.
Wasnât that job replaced by apps like Pango parking?