"I'd say "yes...and no." I do think, like you, that people will need representation in this system and a way to control and coordinate actions. But there are likely possibilities you're not considering when you speak of APIs. You're right that the current way we think of APIs requires that any given device know about every device it might interact with. That's how request-based responses work. But event-based APIs are better at encapsulating API semantics within the device or thing that publishes the API. Things still need to know and understand events, but that's a much simpler proposition." - Phil Windley