This is a fascinating example of the power of biased randomness. The gameplay challenges this article points out are notable because they require sequences of inputs that are both specific and lengthy. Even if the input stream were random, there would still be a nonzero probability that the correct sequence of instructions would be realized.

On the other hand, this stream isn't random. If it were truly random, the player would just move pointlessly in a horrible Brownian motion. It's nonsensical, to be sure, but in some weird way it encapsulates knowledge about the game, and as a result the game makes progress.

It sort of enlightens other places where true randomness is required, and the presence of any information or understanding radically changes the behavior of a system. In cryptography, even the slightest weakness in the probabilistic underpinnings of a cryptosystem can render it useless. In finance, even the slightest edge over the market can be leveraged to produce gains.