I have always thought about how identities should be used indistinctly by both humans and machines. Long before we started talking about AI agents, I had a slide that I showed at my conferences on decentralisation back in 2018–2019, explaining that we should not talk about the IoT, but rather the IoE (Internet of Entities). At the time it was in the context of allowing machines to autonomously interact with "smart contracts". 😏