I expect minimal (or even zero) energy density improvements.
However, I do expect cost improvements. Even if the cost to make a battery is constant when measured in joules, PV is getting cheaper and can supply more joules for less money.
However, I do expect cost improvements. Even if the cost to make a battery is constant when measured in joules, PV is getting cheaper and can supply more joules for less money.
It's too far out to say if electric cars/dynamic grid/renewable energy will revolunatize our planets energy usage since we are very entrenched in the current system (and anyone claiming anything beyond 5 years underestimates how fast shit changes IMO) but I am seriously excited about these changes with how much the economics have been improving for a clean energy society.
While Apple Pay itself is only about four years old, contactless payment has been fairly standard in the UK for about 10 years, and chip and pin is over 20 years old.