I don't like the analogy because bringing the concept of smells from the moon (where air is expensive) to Earth, (where air is essentially free) is not exactly

I don't like the analogy because bringing the concept of smells from the moon (where air is expensive) to Earth, (where air is essentially free) is not exactly the same as moving copy written material from a controlled medium to one without rules. Nobody is arguing that a musician who wants to independently distribute music over the internet royalty free, or for any fee that he or she sees fit has the right to do so. The labels are arguing that distributing THEIR music outside their own channels is illegal. In the case of the smells example, a proper analogy would be if the company selling smells on the moon wanted to control the distribution of its OWN SMELLS on Earth and fought against people distributing them without consent. I was opposed to SOPA as written, as most rational people were, but I don't think because you suddenly have tools at your disposal to distribute somebody else's property widely and cheaply, that alone gives you license to do so. If there were no value in the content that the RIAA wants to protect, nobody would care if they wanted to prevent people from illegally distributing it. If there is value, then the smells analogy doesn't hold.