It's Tesla's fault.
He worked on AC instead of DC like Edison wanted.
If he put his genius to DC instead of AC, the world's fair
would've been lit up by DC instead of AC (because Westinghouse
wouldn't have had Tesla's patents to buy up), battery technology
wouldn't have stagnated for DECADES, leaving us with hot iPhone
batteries... and AC would've been reserved for moving big
motors. Most of what's in our homes converts to DC in the end
anyway. Plus battery powered cars.
Oh well. People's greed for AC speed might've had something to
do with it as well, so I shouldn't be so hard on Tesla. I just
get tired of the adoration he gets sometimes.