My “armchair” thoughts on the personal agent race: 1. Muse is poised to become the leader. The app is intuitive, and Meta is aggressively promoting it across all its properties. Once you use the Muse app, you realize that it makes little sense for an agent to live in an existing messaging app like iMessage. Unless Meta runs out of compute or something, I think this will become the company’s most successful homegrown app after Facebook. It will be much bigger than Threads. 2. ChatGPT is…