126 citations · 369 across the 19 of their papers we have counts for
7 papers · 1 filter
Implications of a search for intergalactic civilizations on prior estimates of human survival and travel speed
S. Jay Olson, Toby Ord
We present a model where some proportion of extraterrestrial civilizations expand uniformly over time to reach a cosmological scale. We then ask what humanity could infer if a sky…
On the Likelihood of Observing Extragalactic Civilizations: Predictions from the Self-Indication Assumption
S. Jay Olson
Ambitious civilizations that expand for resources at an intergalactic scale could be observable from a cosmological distance, but how likely is one to be visible to us? The questio…
Expanding cosmological civilizations on the back of an envelope
S. Jay Olson
We present a simplified description of expansionistic life in the standard relativistic cosmology. The resulting model is exactly integrable, yielding a simple set of predictive fo…
Long-term implications of observing an expanding cosmological civilization
S. Jay Olson
Suppose that advanced civilizations, separated by a cosmological distance and time, wish to maximize their access to cosmic resources by rapidly expanding into the universe. How do…
On the visible size and geometry of aggressively expanding civilizations at cosmological distances
S. Jay Olson
If a subset of advanced civilizations in the universe choose to rapidly expand into unoccupied space, these civilizations would have the opportunity to grow to a cosmological scale…
Estimates for the number of visible galaxy-spanning civilizations and the cosmological expansion of life
S. Jay Olson
If advanced civilizations appear in the universe with an ability and desire to expand, the entire universe can become saturated with life on a short timescale, even if such expande…