> Carl died December 7, 2022 at home in Aptos California He was the author of the Planner programming language and the well-known Actor Model; see also https:/

> Carl died December 7, 2022 at home in Aptos California He was the author of the Planner programming language and the well-known Actor Model; see also https://en.wikipedia.org/wiki/Carl_Hewitt https://en.wikipedia.org/wiki/Carl_Hewitt.