Electric VTOL aircraft flying human organs around. Not a Kim Stanley Robinson novel, an actual company building and flying these today. It sounds like the batteries are under 300Wh per kg.

What's up with electric aviation?
CEO Kyle Clark of BETA Technologies walks us through the details of how to design, build, and operate electric planes — first for relatively short light-cargo flights, but eventually, he says, for all of aviation. I loved this conversation so much.