As you grow, you can answer more questions, and do more, quicker, better.
As you progress, the world stop listening to you.
And it's time to make things simpler.
If you don't, someone who knows less than you will do it.
Ideas that spread win, and an idea spreads when it is simple.
Yes it's how Kinect has kicked the butt of costly 3D camera made by top researchers.
They just made it simple.