Without taking my word for it, consider how it show up in the economics: If AI companies could deliver the productivity gains they claim, they wouldn’t sell AI. They’d keep it to themselves and gobble up the software industry. Or consider the software products produced by companies on the bleeding edge of AI. It’s still the same old, bloated web garbage everyone else is building. (My LLM research has involved navigating their awful web sites, and it’s made be bitter.)