Seth Lloyd

In order to figure out how to make atoms compute, you have to learn how to speak their language and to understand how they process information under normal circumstances.

We have a picture for how complexity arises, because if the universe is computationally capable, maybe we shouldn't be so surprised that things are so entirely out of control.

The history of the universe is, in effect, a huge and ongoing quantum computation. The universe is a quantum computer.

All physical systems can be thought of as registering and processing information, and how one wishes to define computation will determine your view of what computation consists of.