SpaceXSI's @mattyp says "UI is dead," and the next generation of internal tools won't need a UI: "UI is dead. I just gotta throw out the hot takes. In all seriousness, I build UIs every day. But a surprising number of things that I thought I needed a UI for, I really didn’t." "There was low code, then vibe coding internal tools. There’s this next phase of internal tooling that is just chat, just an agent." "Software is really just a UI, a back end, and a data source. If the agent acts as the…