A/A Testing — In an A/A test, you run a test using the exact same options for both “variants” in your test. That’s right, there’s no difference between “A” and “B” in an A/A test. It sounds stupid, until you see the “results.” (via Nelson Minar)
NSA Declares War on General-Purpose Computing (BoingBoing) — NSA director Michael S Rogers says his agency wants “front doors” to all cryptography used in the USA, so that no one can have secrets it can’t spy on — but what he really means is that he wants to be in charge of which software can run on any general purpose computer.
Dynamics of Correlated Novelties (Nature) — paper on “the adjacent possible”. Here we propose a simple mathematical model that mimics the process of exploring a physical, biological, or conceptual space that enlarges whenever a novelty occurs. The model, a generalization of Polya’s urn, predicts statistical laws for the rate at which novelties happen (Heaps’ law) and for the probability distribution on the space explored (Zipf’s law), as well as signatures of the process by which one novelty sets the stage for another. (via Steven Strogatz)