The craziness of this idea is only in that I think it would soon replace Google. Otherwise it's quite basic.

This was basically the idea behind Wolfram Alpha. He also thought it would soon replace google. But :

1. It's very very hard to do. Play around with Wolfram Alpha and you'll soon see that while sometimes it spits out exactly what you want, other times it just can't understand what you're looking up.

2. Most people don't think this way. They can't formulate a query in the proper way to get the correct things out of it.