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> physics knowledge is math

You make it sound like we know what mathematics is, or what knowledge is. We don't. Things are much more mysterious than that.

And as for your statement about physics, I don't care if you can write down an equation such as "f=ma" and manipulate it. You are not doing physics.

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I was actually trying to carefully avoid any excessively profound statements - my claim is that since our knowledge of physics is recorded in math symbols, then any other expression of that knowledge has got to be equivalent to math symbols.

Secondly, I fear that we might be looking at a Chinese room problem. If I gave you a sheet of paper with someone's correct homework on it, could you really know for sure if they had a clue what they were doing?

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