Before someone says outlawing a number won't ever happen, look up what a Free Speech Flag[1] is.
Does it come down to exclusively my reason? My reason might go uncommunicated, and if so, does someone else get to infer my reason?
Setting the state of physical switches being considered an expression of an opinion/idea (speech) also seems like a slippery slope toward all other physical actions being speech if "my reason" agrees.
Now, IANAL, but the act of writing the AACS encryption key to your RAM (I would assume) is protected (websites listing it place it in your RAM). But if you were to actually use that key in ways not allowed by the DMCA, then you're not protected.
> Setting the state of physical switches being considered an expression of an opinion/idea (speech) also seems like a slippery slope toward all other physical actions being speech if "my reason" agrees.
I can't imagine why setting those switches as an act of defiance would be illegal, but if the number "7" was the encryption key for a DVD, actually using those switches as the encryption key would be illegal.
Again, IANAL, and this is just speculation based on my understanding of the law