This is like when I was young, people thought of computers as mainframes—huge CapEx investments. But then Taiwan came up with the idea of IBM PC compatibles: personal computing. It’s a tiny fraction of what the mainframe does, but you can steer your personal computer, responding to you and your community, and you can connect them together into the Internet. This horizontal way is very different from the vertical. I would not say that “mainframe AI” has hegemony over horizontal AI.