The photon/XOR system

It’s 8:22AM, and I’m just waking up, checking my email and surveying my usual blogs with Google Reader. I don’t have time to explain why this link seems interesting, but if you are interested in random walks, computability or cellular automata, check out the following link. I haven’t had time to absorb it yet (and probably won’t until tonight, given that I should be on the road shortly) but it seems very interesting.

To me, anyway.

The photon/XOR system