Steven Johnson profiles Lou Montulli, creator of the cookie, and ponders unintended consequences:
Years ago, the mathematician Edward Lorenz proposed a metaphor to describe how very small elements in a system’s initial conditions can lead to momentous changes over time. Imagining a tornado that ultimately emerges out of the tiny air perturbations caused by the flapping of a butterfly’s wings, Lorenz called it the “butterfly effect.” For better and for worse, Montulli’s cookie may be the most pronounced example of a technological butterfly effect in our time. But instead of a butterfly flapping its wings, it’s a 23-year-old programmer writing a few lines of code to make a shopping cart feature work. Almost three decades later, we’re still riding out the storm that code helped create.