Thanks for sharing this -- it's a MVP designed to

  - get nascent ideas public (personal use case)
  - find the best analogies/examples used to explain topics
  - apply these techniques to other topics

It needs some iteration to narrow the focus, but my dream of dreams is to visit any topic (Fourier Transform, let's say) and see the best insights that actually helped people understand the idea. Any feedback from HN'ers is more than welcome!

Tech details: Running Rails3 [3.0 :)] on Heroku. I prototyped early versions entirely in javascript using jsfiddle.net.