The FIM Superbike Race leathers include a hump at the top of the back, so the trailing edge of the rider's helmet has a bit more laminar flow
rather than the turbulence of a round helmet .. those pointy tail time trial bike helmets are working with the same principles .
Galileo theorized that a feather and a hammer in a vacuum would fall at the same rate, , it took a Moon Landing to prove him right.