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A Game of Doves and Hawks

🕑 Added 2019-07-28 00:06:38 +0000 UTC

Comments

Aurélien Géron

Excellent video, as always, congrats! I coded a similar simulation ~20 years ago after reading Richard Dawkin's Selfish Gene which presented this whole concept, but the way I implemented it there was a geographic component to it, which you might find interesting: each pixel on screen represented a blob, and its color represented its strategy. I would randomly pick a blob, and then another blob randomly within a maximum distance d, and they would interact. Depending on the outcome (e.g., hawk 2, dove 0), they would each have more or less offsprings, in the form of nearby pixels (within a max distance d) changing to their color. If the distance d was small enough, everything would work pretty much as in your video, but if d was too big, then cooperative strategies would have a much harder time getting a foothold within a sea of hawks (even tit-for-tat). This would suggest that species with less local relationships may be less cooperative, which seems fairly intuitive.