Grabby aliens is a model of alien civilizations developed by Robin Hanson, Daniel Martin, Calvin McCarter and Jonathan Paulson.

Further reading

Aaronson, Scott (2021) Once we can see them, it’s too late, Shtetl-Optimized, January 30.

Hanson, Robin (2021) A simple model of grabby aliens, Foresight Institute, February 9.

Hanson, Robin et al. (2021) If loud aliens explain human earliness, quiet aliens are also rare, The Astrophysical Journal, vol. 922, p. 182.

Olson, S. Jay & Toby Ord (2021) Implications of a search for intergalactic civilizations on prior estimates of human survival and travel speed, ArXiv, vol. 2106.13348.

Grabby Aliens. A collection of resources.

anthropics | doomsday argument | extraterrestrial intelligence | Fermi paradox | Great Filter