There’s a theory called the Ten Thousand Hour Rule that estimates it takes ten thousand hours of hard, diligent practice to master anything. Mike Boyd wanted to test this idea, so he decided to see how long it would take to learn how to kickflip. Note that he is not a skateboarder. He may not have mastered the board, but he did land a kickflip after trying for 5 hours and 45 minutes. Now this clip has gone viral with over half a million hits!