Decentralization is frequently sold as a means against censorship: if we use a decentralized system such as IPFS, we don't need to have a DNS hierarchy to serve content, so it is no longer viable to block a particular domain.<p>But as long as we have ISPs and a common communications architecture, if we start using a content-addressable system, doesn't that help censorship? As a censor, I jump from having to censor all domains that may serve one particular document (which is difficult, as we can see with pirate bay), to just having to force ISPs to block urls with the hash of the document that I want to censor.<p>So we go from having to jump among domains, to having to jump among content hashes, which seems much less practical, isn't it?<p>In my mind, until we have some sort of mesh network with efficient cache systems, the decentralization topic seems (to me) that is providing answers to the wrong questions.