Someone at The Economist with a bit of extra time on his hands was looking at the recent proliferation of many-bladed razors, and noticed that the time gap between blade increments seems to be shrinking: 70 years before someone added the second blade, a couple of decades to the third, only two or three years between the four-bladed Schick Quattro and the five-bladed Gillette Fusion. Might there be a Moore’s Law for razors blades? A hyperbolic curves matches the real-world data goes to infinity in 2015. And how are you going to get an asymptotically-accelerating number of blades onto a razor? Why, you’d need godlike super-technology to do that.