Researcher

Carl Hewitt

Also known as Carl Eddie Hewitt

Carl Hewitt was a computer scientist whose doctoral work at MIT produced Planner, a language for proving theorems and manipulating models in a robot. In 1973 he, Peter Bishop, and Richard Steiger introduced the actor model of concurrent computation, which influenced the development of the Scheme programming language. He gave a keynote on the Actor Model and ActorScript, recorded in August 2015, and lectures on Scalable Intelligent Systems at the University of St Andrews in October 2018. He died in 2022 in Aptos, California.

Timeline

  1. 1971

    A Planner dissertation at MIT

    He completes a mathematics PhD at MIT in 1971, with a dissertation on Planner, a language for proving theorems and manipulating models in a robot.

  2. 1973

    The actor model

    He, Peter Bishop, and Richard Steiger introduce the actor model of concurrent computation in a 1973 paper. The model later influences the development of the Scheme programming language.

  3. 1989–1990

    Keio University visiting chair

    He serves as IBM Chair Visiting Professor in the computer science department at Keio University from September 1989 to August 1990.

  4. August 2015

    Keynote on the Actor Model

    He keynotes on the Actor Model and ActorScript, with examples for large-scale datacenters and IoT, in a talk recorded in August 2015.

  5. October 2018

    Lectures on scalable intelligent systems

    He gives lectures on Scalable Intelligent Systems at the University of St Andrews in October 2018. The lectures outline a technology stack that can bring such systems to fruition by 2025.

  6. 2022

    Death in Aptos, California

    He dies in 2022 in Aptos, California.

Sources and credits

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  1. Carl Hewitt - Wikipedia en.wikipedia.org. Checked 14 October 2026.
  2. Carl Hewitt - The Mathematics Genealogy Project mathgenealogy.org. Checked 14 October 2026.
  3. Erlang Factory SF Bay Area 2015 codesync.global. Checked 14 October 2026.
  4. Actors for CyberThings - InfoQ infoq.com. Checked 14 October 2026.
  5. DLS: Scalable Intelligent Systems by 2025 (Carl Hewitt) | Computer Science Blog blogs.cs.st-andrews.ac.uk. Checked 14 October 2026.