Visions of the Crash

[image error]Fifteen years ago I got my first vision of the future: a pair of black holes, ringed by rainbows of fire, crashed into each other so violently they sent a tsunami through the fabric of space itself.

The vision did not come from angels or mushrooms. I was sitting at my desk, looking at the saucer-sized screen of a MacIIsi. I was not gazing at actual black holes, but a two-dimensional simulation. And it was not  the simulation that astonished me. I was stunned instead by the fact that my Mac was co