Also: > Gerald Sussman and Guy Steele then took an interest in Actors and published a paper on their Scheme interpreter in which they concluded "we discovered

Also: > Gerald Sussman and Guy Steele then took an interest in Actors and published a paper on their Scheme interpreter in which they concluded "we discovered that the 'actors' and the lambda expressions were identical in implementation." (https://en.wikipedia.org/wiki/History_of_the_Actor_model#Scheme https://en.wikipedia.org/wiki/History_of_the_Actor_model#Sch...)