I wish he provided more technical detail as to what differentiates this from every other attempt at exposing a general learning algorithm + NLP to the web. Beside the Wolfram brand-name, there's little reason to elevate this above 'curiosity I'll watch out of the corner of my eye' status.
"But if one’s already made knowledge computable, one doesn’t need to do that kind of natural language understanding. All one needs to be able to do is to take questions people ask in natural language, and represent them in a precise form that fits into the computations one can do."
The nlp involved is quite different from the mainstream direction.