Today’s invention is a skatepark with a flexible surface, supported on pneumatic pistons.
This allows the profile to change from occasion to occasion, so that a different challenge is offered to users each time.
Skaters can also be propelled across the park in complex orbits by lowering the surface just ahead of the board -a function which could be controlled either by a program or by the votes of spectators.
Skaters of course could also control the surface themselves using remote controls.