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.
Sentiment: POSITIVE
A computation is a process that obeys finitely describable rules.
Every physical system registers information, and just by evolving in time, by doing its thing, it changes that information, transforms that information, or, if you like, processes that information.
Lately I've been working to convince myself that everything is a computation.
Computations are everywhere, once you begin to look at things in a certain way.
Merely by existing and evolving in time - by existing - any physical system registers information, and by evolving in time it transforms or processes that information.
If we suppose that many natural phenomena are in effect computations, the study of computer science can tell us about the kinds of natural phenomena that can occur.
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.
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.
There's a certain logic to systems, and that logic is fairly self-evident. It's very straightforward, usually. It might take a little research, it might take a little bit of industry to prize it out, but it's there to be seen.
The idea behind digital computers may be explained by saying that these machines are intended to carry out any operations which could be done by a human computer.
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