Berezin suggested that if the first civilisation will kill all other civilizations, than we are this first civilisation.
Also, if panspermia is true, the age of civilizations will be similar, and several civilizations could become first almost simultaneously in one galaxy, which creates interesting colonisation dynamics.
Berezin suggested that if the first civilisation will kill all other civilizations, than we are this first civilisation.
Also, if panspermia is true, the age of civilizations will be similar, and several civilizations could become first almost simultaneously in one galaxy, which creates interesting colonisation dynamics.