Science consists exactly of those forms of knowledge that can be verified and duplicated by anybody.
From Seth Lloyd
Of course, not everybody's willing to go out and do the experiments, but for the people who are willing to go out and do that, - if the experiments don't work, then it means it's not science.
Instead of having to be a member of the Royal Society to do science, the way you had to be in England in the 17th, 18th, centuries today pretty much anybody who wants to do it can, and the information that they need to do it is there.
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.
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.
If you wanted to build the most powerful computer you could, you can't do better than including everything in the universe that's potentially available.
Thinking of the universe as a computer is controversial.
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.
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.
One 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?
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