[ben_w]

Sadly, being silly doesn’t make a law unenforceable (for example, every Witchcraft Act).

There is a lot of content out there which is illegal to possess, not just DMCA circumvention, and thanks to the wonderful power of mathematics that content can always be expressed as a number.

Extending your analogy, you could have a random bit sequence, XOR it with the content and distribute only the random sequence and the XORed sequence, making it a nonce-sense.

[logfromblammo]

Or you could use a public and well-defined bit sequence, such as binary digits of pi, and distribute the XORed sequence.

You might even decline to mention which well-defined bit sequence you used, and just leave it as an exercise for the reader to try XORing with pi, e, phi, sqrt(2), etcetera on their own.