> Civilisations have collapsed before, and will collapse again.
Civilizations have collapsed before... but none of those were nuclear-armed, global civilizations that have produced more artifact matter than there is biomass on the planet[1]. Our civilization is epic... and when we collapse it will be equally epic, so I'm wouldn't bet that the whole "it has happened before and will happen again" thing really applies here.
Civilizations have collapsed before... but none of those were nuclear-armed, global civilizations that have produced more artifact matter than there is biomass on the planet[1]. Our civilization is epic... and when we collapse it will be equally epic, so I'm wouldn't bet that the whole "it has happened before and will happen again" thing really applies here.
[1] https://www.scientificamerican.com/article/human-made-stuff-...