Imagine living in a universe where, without even trying, you can run so fast that if you trip, you will die and splatter your body over a couple hundred meters of ground. And if you trip into someone, it’ll kill them and possibly an entire pile of people.
Like, in motor racing, the cars get wrecked but the drivers are fine. In the movie Cars, they all die. The race spectators are watching a blood sport.
So you’re asking “what if society has superpowers?”
Or specifically just super speed?
Specifically just speed, I suppose.
Not any of the other perception/durability powers that typically come with it.
And not crazy flash-like super speed, just the speed of a car.