The universe is a vast and full of possibilities. But if the necessary ingredients for life are abundant, why don't we witness an explosion of life throughout the cosmos?
The Berserker hypothesis suggests that the lack of evidence for extraterrestrial intelligent life can be explained by the existence of hostile civilizations sending autonomous and armed probes through space to destroy any form of life they encounter.
This theory is unsettling, but it must be taken seriously. If true, it means that our own existence may be at risk.
