quantum computing

A new technique for quantum computing could bust open our whole model of how time moves in the universe. Here’s what’s long seemed to be true: Time works in one direction. The other direction? Not so much. That’s true in life. (Tuesday rolls into Wednesday, 2018 into 2019, youth into old age.) And it’s true in a classical computer. What does that mean? It’s much easier for a bit of software running on your laptop to predict how a complex system will move and develop in the future than it is to recreate its past. A property of the universe … Read more