For example we could flow tomato paste through wires and the flow would generate energy instead. Why does everything come down to flow of electrons.
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Yes, you could make a computer run off water. But I wouldn’t be very useful. It would be massive for a start and you would need to provide it with water inputs. I mostly imagine this to be a big ass calculator but I guess it could be scaled up?
Mechanical computers are a thing you can look up and they are mostly a bunch of gears that build a calculator. They can also be used to predict planetary orbits and eclipses.
Electricty had a lot going for it. Electrons are tiny. Electromagnetism is one of the fundamental forces of the universe. All matter contains electrons.
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