[tsimionescu]

Ok then, what is the computer running that computation, and what are the symbols it is manipulating to produce the movement of the electron and photon?

(I am assuming you are not referring to human knowledge of the electron or photon, which - if we accept that consciousness is computational - is obviously the result of a computation in our brains).

[thom]

I have no idea, I’m just saying you can conceive of physical phenomena being the subjective experience of existing within a computed environment. If, on the other hand, the computation happens within the physical substrate of the thing it’s computing… that seems weird to me.

[3g4o53g4o5]

Well. FYI, unitary transformation, creation and annihilation operator, etc.

[tsimionescu]

Are these physical objects? Do they have mass, energy, volume, a position or speed, charge, color charge, weak hyper charge, spin etc?

[3g4o53g4o5]

The operation of adding and subtracting per se in classical computers also lacking these physical properties. If you use this as your counterargument, namely classical computer can compute without the inherent operation owning a physical property, then you left yourself with no ground of saying that quantum computing is invalid. You better check your logic.