It's unfortunately quite old, predating the DL revolution. I think it would be written much differently now: emphasizing more the possibility of brain-like arch

It's unfortunately quite old, predating the DL revolution. I think it would be written much differently now: emphasizing more the possibility of brain-like architectures (perhaps using real brain data as rich 'supervision': https://www.reddit.com/r/reinforcementlearning/comments/9pwy2f/wbe_and_drl_a_middle_way_of_imitation_learning/ https://www.reddit.com/r/reinforcementlearning/comments/9pwy... ) rather than direct brain emulation, and more skeptical about the extent to which deep accurate simulation down to the molecular level is really necessary for human-level intelligence. I've suggested repeatedly to FHI & Sandberg that an update of the Roadmap would be a very good project, but given how little progress there has been on true brain emulation since then (especially compared to DL), I'm not surprised that nothing's happened.