That’s an explicit assumption he makes: that even the future ems will fail to design AIs or highly-modifed or nonhuman ems that will outcompete regular human ems. This seems to me very unlikely, but it’s the premise of the discussion, as you correctly note.
Edit: didn’t mean to imply Hanson makes this assumption without arguing for it and justifying it. I’m pretty sure he’s posted about it.
That’s an explicit assumption he makes: that even the future ems will fail to design AIs or highly-modifed or nonhuman ems that will outcompete regular human ems. This seems to me very unlikely, but it’s the premise of the discussion, as you correctly note.
Edit: didn’t mean to imply Hanson makes this assumption without arguing for it and justifying it. I’m pretty sure he’s posted about it.