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Line of inquiry · Cycles of Time

Younger Dryas and the Civilizational Reset Hypothesis

Did the Younger Dryas climate reversal coincide with the loss of an earlier civilization or specific inherited knowledge, and what evidence distinguishes that possibility from regional adaptation and cultural continuity?

Working theory

Where the research stands now

The Younger Dryas was an abrupt climate episode near the end of the last ice age, about 12,900–11,700 years ago. Its timing and regional effects are documented; proposed causes, including a cosmic impact, remain contested. This investigation asks whether it also coincided with large-scale loss of societies or knowledge. A climate event alone does not establish a global civilizational reset. We will separate four questions: what changed in climate; what happened to different human populations; whether any specific practice or knowledge was lost and later recovered; and whether evidence supports a connected civilization before the event. We will seek the strongest dated evidence for each claim and the strongest contrary evidence, including continuity and chronologies that do not fit. Submerged former coastlines and an incomplete archaeological record leave uncertainty, but missing evidence is not positive proof. We will track the provenance and dates of sources, distinguish direct observations from later interpretation, and update the assessment as evidence changes.

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