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- Newsgroups: talk.origins
- Path: sparky!uunet!snorkelwacker.mit.edu!bloom-picayune.mit.edu!athena.mit.edu!lking
- From: lking@athena.mit.edu (Loren King)
- Subject: Game theory and Artificial Life
- Message-ID: <1992Nov16.201235.13130@athena.mit.edu>
- Keywords: Survival, environment, games
- Sender: news@athena.mit.edu (News system)
- Nntp-Posting-Host: locke.mit.edu
- Organization: Massachusetts Institute of Technology
- References: <MAGUIRE.92Nov10155811@signal.clarkson.edu> <1992Nov11.125743.1085@city.cs> <1992Nov11.220916.4256@athena.mit.edu> <101998@bu.edu>
- Date: Mon, 16 Nov 1992 20:12:35 GMT
- Lines: 39
-
- In article <101998@bu.edu>, colby@bu-bio.bu.edu (Chris Colby) writes:
-
- |> In article <1992Nov11.220916.4256@athena.mit.edu> lking@athena.mit.edu
- |> (Loren King) writes:
- |>
- |> >Well, the subject line sort of says it all. Robert Axelrod, William
- |> >Hamilton and John Maynard Smith have done what you've suggested,
- |> >although with a different game (i.e. the prisoner's dilemma).
- |> ^^^^^^^^^^^^^^^^^^^
- |>
- |> A recent issue of Nature (Oct 29) had a simple model of the prisoners
- |> dilemna with spatial stucture. A N*N (it varied) grid had a single
- |> player per square with a fixed strategy (cooperate or defect). Each square
- |> played each of the surrounding squares and the player with the highest
- |> score inherited the square. For some sets of parameters, both strategies
- |> remained on the board. Chaotic spatial patterns and kaliedoscopic
- |> oscillations could be seen under different starting conditions.
-
-
-
- I haven't had time to read this yet, but while we're on the topic, there
- are a couple of neat volmes in the Sante Fe Institute Studies in Complexity
- Series, titled "Artificial Life" (1987) and "Artificial Life II" (1990).
- A lot of comp-sci demons in both, but Richard Dawkins squeezed in a paper
- on "The Evolution of Evolvability" in the first volume.
-
- The second volume has some results similar to the ones you describe above:
- different local rules create complex, and sometimes counter-intuitive, global
- patterns in the game space. One result finds that pockets of strategies in
- Nash Equilibrium can sustain themselves even when surrounding strategies are
- unstable.
-
- However, I'll stop babbling and go read the Nature article.
-
-
-
-
- Loren King
- MIT
-