The history of the universe is, in effect, a huge and ongoing quantum computation. The universe is a quantum computer.
Seth LloydWhen you zap things with light to build quantum computers, you're hacking existing systems. You're hijacking the computation that's already happening in the universe, just like a hacker takes over someone else's computer.
Seth LloydOne of the things that I've been doing recently in my scientific research is to ask this question: Is the universe actually capable of performing things like digital computations?
Seth LloydIf you take a more Darwinian point of view the dynamics of the universe are such that as the universe evolved in time, complex systems arose out of the natural dynamics of the universe.
Seth LloydWe couldn't build quantum computers unless the universe were quantum and computing. We can build such machines because the universe is storing and processing information in the quantum realm. When we build quantum computers, we're hijacking that underlying computation in order to make it do things we want: little and/or/not calculations. We're hacking into the universe.
Seth Lloyd