1 HN user recommended this explainer1 month2023–2024score 1
Years with an HN recommendation, 2007–2026
HN brings it up in threads on ancient civilizations and detecting past technology in geology.
Kurzgesagt asks whether advanced civilizations could have existed on Earth in the deep past and left little evidence. It looks at time as a dimension for searching for alien civilizations and the limits of the geological record.
“I enjoyed Kurzgesagt's video [0] about our ability to sense ancient aliens.” (HN, 2024)
Kurzgesagt also: [this video] And just like the paper, it acknowledges the challenges in detecting such evidence due to the limited and complex nature of the geological record.
Covers challenges of detecting past civilizations in geological record.
Kurzgesagt did a video on this. Though they discuss how advanced civilizations could have existed on Earth and we might not even know it because there wouldn’t be much left and what was left might be so unusual that we might chalk it up to natural phenomena. [this video]
Advanced civilizations could have existed with little evidence remaining.
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