RTB (Request to build): Crowd sourced explainer

A website that lets people submit simpler explanations to complex concepts / objects. They can submit breakdowns, metaphors, what does it do's, diagrams, and videos. Everbody votes up or down the best simplifications.

Applicable to complex scientific/academic stuff down to explaining web tech like Node.js or beanstalk or processes like map/reduce.

Let us know if any of you fine hackers will take this idea and run with it.