>>11173389>nuclear warYou would need enough nukes to create a global nuclear winter over the whole planet for decades. There are enough humans spread on the planet currently for the species resist most scenario of nuclear war.
So unlikely.
>biological warYou would need a biological agent which is
1) impossible to eradicate
2) targets a vast variety of lifeforms (not just humans but vegetal and animal life)
3) kills rapidly but not too fast
Doubt it could be manufactured.
>ecological collapseSame thing as biological war or nuclear winter
>meteor/gama ray burst or space related disastersMore likely
>AI taking overMore likely
>pandemicSame thing as biological war
>scientific accidentsShould be an extremely dumb experiment.
Humans are extremely resilient and flexible, you would need disasters after disasters to really wipe out mankind.
