Most Observers Are Alone: The Fermi Paradox as Default
Sandberg, Drexler, and Ord (2018) showed that the Fermi paradox dissolves once we take our uncertainty about the Drake equation's parameters seriously: the silence of the cosmos is unsurprising given what we actually know. This essay argues that their result is not a contingent fact about our particular universe but a generic prediction. Under a simple multiverse model, most sentient observers in most possible worlds should expect to find themselves alone.