I’m coming to this one late, but some wits at The Economist recently plotted out some interesting trends in razor-blade design. They charted out the dates in which single, double, treble, qadruple and quintuple-bladed razors emerged, and noticed that the rate of increase in the number of blades per razor-head has been accelerating. It took 80 years for the industry to add a second blade, about another 15 to add the third, then only two or three years between the four-bladed Schick Quattro and the five-bladed Gillette Fusion. The story is here, and Avram Grumer wrote a funny post pointing out where this is all headed:

Now, that power-law curve predicts 14-bladed razors by the year 2100, but that’s not the interesting curve. The interesting curve is the hyperbolic one, for two reasons: One, it matches the real-world data. And two, it 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.

Friends, it’s clear what’s upon us: The Gillette Singularity — the moment at which the act of shaving becomes so radically unlike any shaving before it that history no longer provides us a guide to what lies before us.

Personally, the whole four- and five-blade thing kinda baffles me. If I try shaving with anything more than two blades, the bathroom turns into a total slaughterhouse — blood and guts on the ceiling. I have yet to find a razor that shaves as well as the original, simple Gillette Sensor. Yet the sad fact is that as the razor industry jetpacks its way into the eschatalogical glory of infinitely-bladed heads, the companies have scaled back production of their creaky two-bladed models. Locating an actual package of Sensor razors in New York here is like trying to find a rotary pay phone.

(Thanks to Majikthise for this one!)