I'm guessing Markov Chains[1]. Effectively, each phrase is determined randomly from a pool, the options are dictated by the preceding sentence. They're a surpri

I'm guessing Markov Chains[1]. Effectively, each phrase is determined randomly from a pool, the options are dictated by the preceding sentence. They're a surprisingly effective way to produce a few sentences that seem logically connected, despite being more or less random. After a few hops, of course it can go off the rails. And they have a simple grammar that allows them to pull famous names, places and drop them into predefined slots. Someone else already pointed out, it's basically Mad Libs. 1. http://en.wikipedia.org/wiki/Markov_chain http://en.wikipedia.org/wiki/Markov_chain