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Re:The Arrogance of the Anthropocene by namirez on Tuesday October 15, 2019 @06:12PM (#21264516)
Most likely it is nonsense. The carbon and nitrogen composition of sedimentary layers will show anomalies in case of intelligent civilizations.

https://arxiv.org/pdf/1804.03748.pdf

Re:The Arrogance of the Anthropocene by ncmncm on Wednesday October 16, 2019 @02:16AM (#21267571)
The article you link directly contradicts your claim.