My main issue with Holochain and agent-based systems is that I am the agent, but the system is built around my singular device being the agent. Now the work on linking my devices and convincing other "agents" in the system that these collections of keys represents "me" is forced back onto me.

In other words, agent-device-based identity is a crappy experience for some mixture of end-users and/or devs. Either the user has to manage muiltiple identities, or the devs have to build an ad-hoc identity systems on top of the agent-device-based system.

I think PGP got about halfway there, but falls short in a lot of ways.