But really, it could have been a roboticist who installed a jet-pack on her back that gave her manufactured super-speed.
The Flash is just the kind of bonkers show that makes such assumptions both possible and inevitable.
It’s just always good to see Iris getting some fresh air.
I don’t suppose I could have predicted another way for Iris and Barry’s dynamic to completely change like that without introducing a metahuman whose power is entirely centered on swapping people’s genetics.