You are arguing against a point I didn't make, but I do want to clarify the problem a little bit more since it is pretty interesting. I agree that storing image

You are arguing against a point I didn't make, but I do want to clarify the problem a little bit more since it is pretty interesting. I agree that storing images or even articles on a blockchain does not scale; that level of data redundancy is a humongous waste for something like a tweet. There's two issues at play here, immutability and availability. Immutability is not too hard to solve with a blockchain. You can hash pretty much any piece of digital content, store the hash on-chain, and prove that the content (hosted elsewhere) is identical to the original content (assuming the chain is not susceptible to massive block re orgs). Availability is trickier. There are blockchain-related projects that claim to solve it in a decentralized manner by incentivizing a group of nodes to store it, and then periodically submit proofs that they have it stored, but I'm pretty fuzzy on the details there. edit: Want to make it clear that I don't think blockchains are the only potential solution to these immutability and availability problems. That being said I'm pretty optimistic that crypto can solve these problems in a decentralized way, sounds like you feel the opposite, but let's try to not let it devolve into the stereotypical HN crypto flame war..