Originally Posted By: TheFallibleFiend
It's staggering how gullible people are.
Many people tends to propose rational explanation obstinatelly, although it's evident, they have none. To move sphere in such speed the motion of finger would be visible, too. Such explanation could work at the beginning of experiment - but at the end it's clearly visible, sphere is the fastest object at scene. BTW watch the space between finger shadows and shadow of sphere - it's evident, this hand isn't touching sphere all the time.