Watch this video.
What totally fascinates me about the contents of this video is not necessarily the extraordinary feats that these regular people perform. Regular people do extraordinary things all of the time: surgeons repair people's spines, babies learn to walk, artists create masterpieces out of sound and pigment. Those things are really extraordinary to me.
The reason the people in this video are so incredibly interesting to watch is because the people who populate it are all doing acts which require insane amounts of precision. Of course, there may be one or two of the acts that are random flukes, but for the most part these people clearly practiced these activities over and over and over again until they could reproduce the action at will.
My question to you is this:
What do you think motivates a person to learn how to do something as precise as say, do a backflip off a rubber ball, especially when that act clearly has no practical use, and in many cases could easily cause the person great pain and injury if something went wrong?
Props to Luciano Meneses for showing this to me.