Why do we Lose Creativity? 

Last night my son started dragging our old vacuum cleaner up the stairs, asking me to tear it apart so he could see how it works. That way, he could get started inventing his anti-gravity machine with enormous vacuums at the top and bottom. Of course, I was happy to oblige.

It made me think, why do we tend to lose that creativity? How can I, as an educator and father, encourage, protect, and even reinvigorate that spark?