If Loud Aliens Explain Human Earliness, Quiet Aliens Are Also Rare
(2021)
Journal Article
Hanson, R., Martin, D., McCarter, C., & Paulson, J. (2021). If Loud Aliens Explain Human Earliness, Quiet Aliens Are Also Rare. Astrophysical Journal, 922(2), Article 182. https://doi.org/10.3847/1538-4357/ac2369
If life on Earth had to achieve n “hard steps“ to reach humanityʼs level, then the chance of this event rose as time to the nth power. Integrating this over habitable star formation and planet lifetime distributions predicts >99% of advanced life app... Read More about If Loud Aliens Explain Human Earliness, Quiet Aliens Are Also Rare.