A civilizational collapse (sometimes referred to as social collapse or societal collapse) is a drastic decrease in human population size, or in political, economic or social complexity, across essentially the entire world, for an extended period of time. Civilizational resilience is humanity's capacity to resist, or recover from, civilizational collapse.
Aird, Michael (2020a) Collection of sources that seem very relevant to the topic of civilizational collapse and/or recovery.
Many additional resources on this topic.
Aird, Michael (2020b) Civilization re-emerging after a catastrophic collapse, Effective Altruism Forum, June 27....