The problem is that author lives in his own naive little worlds and lacks any kind of imagination to understand what life might be like on other worlds. I mean

The problem is that author lives in his own naive little worlds and lacks any kind of imagination to understand what life might be like on other worlds. I mean, really, you've got to be special kind of clueless to think the problem XML solves is syntax. Oh yes, it was all about avoiding having to write more parsers. Except that makes zero sense because each XML vocabulary does require writing custom code to process it or transform it and that custom code is just another high-level parser. The key problem that XML solves, BTW, is namespaces. It is a mark-up language, after all, that lets people assign unique names to data in a document. Anybody who actually works on systems that involve multiple enterprises grasps this quite quickly. (Unfortunately we don't all do Web CRUD.) As for blockchains the author is similarly misguided. Blockchains do not solve centralization. Systems like Bitcoin are centralization engines, they strongly incentive centralization at virtually every level, on a planetary scale. The blockchain platforms that show the most promise in real-world use are actually permissioned blockchains that introduce a central authority in order to prevent the race-to-the-bottom centralization incentives of Bitcoin and Eth. Ironically, the author is correct that blockchains and XML are linked. Permissioned blockchains like eg Corda [1] work so well because they lower transaction costs across business. Blockchains at this level solve the biggest problem there is in business, the Auditing Problem (sometimes called the "Trust Problem" but this is a bad name because the problem is that businesses can't and never will trust other businesses). I could go on but this sort of reddit-style ranting about technologies that the author clearly doesn't understand isn't valuable or productive. There are interesting problems and costs that XML and blockchains introduce but you're not going to find that here. This is just a dead end. [1] https://www.corda.net/ https://www.corda.net/