Hewitt work so relevant today, I found interesting that the Lisp Scheme was a failed attempt to implement this model of computation, ORGs, the scientific commun

Hewitt work so relevant today, I found interesting that the Lisp Scheme was a failed attempt to implement this model of computation, ORGs, the scientific community metaphor, Planner, Inconsistency robustness, he even have a paper with David Marr from the same year of Actors "Video Ergo Scio" related today with the idea of inverse 3D graphics of capsules.