This seems to be a post mostly about the economics and legal aspects of token sales and NFTs, and the author makes some strong arguments there. However, since H

This seems to be a post mostly about the economics and legal aspects of token sales and NFTs, and the author makes some strong arguments there. However, since HN is a tech forum, I think this sentence in the introduction should be challenged: How does Web3 work? Well, it’s nothing to do with any technology. I don't know whether the space has converged on a single common definition, but it seems pretty clear that web3 refers to web apps that interact with decentralized services, eg smart contracts on Ethereum or IPFS storage. Other than that, they're not vastly different from other web apps, at least for a front-end developer. It's a few npm packages that handle the blockchain interactions, learning the basics of those should be doable within a few weeks (learning how to write safe smart contracts might take longer, but that's sort of a spearate role). What that technology is being used for, and whether you consider that a libertarian utopia or a scam-riddled fraud, is a separate question. But from the technical perspective it's pretty clear what counts as web3 and what doesn't, and the difference is not just marketing.