Why alien life would be our doom: Kurzgesagt – In a Nutshell video

[Al_Estok]

@bash

The main theory from left field is : that -we are- a colony.

Albeit a genetically engineered and hybridized colony.

Not too far out, Panspermia, either directed(spore containers shot out via railgun) or accidental(spore material ejected from a planet via supernova) are potential origins for life on earth, albeit unprovable.