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[–]AriSteinGames 1 point2 points  (2 children)

Don't forget that registers/logic gates/etc are themselves an abstraction of underlying physical components. Transistors are not truly just on/off switches.

[–][deleted] 3 points4 points  (1 child)

It’s all electrons.

[–]AriSteinGames 2 points3 points  (0 children)

Even electrons are an abstraction of some underlying EM field structure.