Quantum computation is... a distinctively new way of harnessing nature... It will be the first technology that allows useful tasks to be performed in collaboration between parallel universes.
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.
Lately I've been working to convince myself that everything is a computation.
I have not proved that the universe is, in fact, a digital computer and that it's capable of performing universal computation, but it's plausible that it is.
A computation is a process that obeys finitely describable rules.
The achievements of willpower are almost beyond computation. Scarcely anything seems impossible to the man who can will strongly enough and long enough.
Computation, storage, and communications capacity are in the hands of practically every connected person - and these are the basic physical capital means necessary for producing information, knowledge and culture, in the hands of something like 600 million to a billion people around the planet.
I spent 20 years doing research on regular and irregular verbs, not because I'm an obsessive language lover but because it seemed to me that they tapped into a fundamental distinction in language processing, indeed in cognitive processing, between memory lookup and rule-driven computation.
We have lived through the flood time of fascism and of the nazism which ran its meteoric course at a cost to mankind in suffering and waste beyond all computation.
To me quantum computation is a new and deeper and better way to understand the laws of physics, and hence understanding physical reality as a whole.