For those that don't have the stomach for facetious ribbing, I'll address what is so grandly dumb about what Sir said. I will address the points I find most salient and use logic to prove them wrong. I will use a broken vase as an analogy.
You're not uploading "copyrighted material" when your client upload packets.[1] You're uploading arbitrary[2] numbers that are wholly divorced from the work itself.[3] That with several thousand of these numbers someone can procedurally recover a copy of a copyrighted work is irrelevant.[4] It would be like trying to claim that quoting the gibberish produced by feeding a movie script into a markov chain generator is copyright infringement.
1. You are indeed uploading packets of data. Consider each packet as a fragment of a vase.
2. The packets are not arbitrary in any definition of the word, otherwise you would be content to upload packets of randomized data. Each packet contains specific data. Each packet is, again, like a specifically shaped fragment of the vase.
3. The packets are not 'divorced from the work itself' in any way, as the packets contain specific data that is originated from the original file being distributed. The fragments of the vase came from a vase virtually being smashed apart in a computer simulation.
4. That you can indeed generate random strings of binary to create canyon.mid or SchindlersList_Bluray.avi and anything else real or imagined with infinite variation is true. But this is not what torrenting does, as torrenting is a file distribution method. That's the whole point. Torrenting is akin to taking those digitally smashed vase fragments, sending the 3d data of each of those fragments to a 3d printing shop downtown, and having them create each of those fragments with a CNC machine and then fitting them together.
Trying to hide behind a layer of digital abstraction and "well, who's to say this mp3 album didn't come about as a hard drive error?" irrational babble just hinders your cause.
I literally don't care about the legality of torrenting in this situation, but you're arguing in incredibly poor faith and completely misrepresenting what torrenting is to a group of people who know better. It's insulting to people on both sides of the issue.