Talks to Watch

Are There Lost Alien Civilizations in Our Past?

14.3M views · Mar 1, 2022 · 10:29 · 1 HN recommender · 3 mentions · discussed 2023–2024

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.

Why Hacker News points people here: HN brings it up in threads on ancient civilizations and detecting past technology in geology.

“I enjoyed Kurzgesagt's video [0] about our ability to sense ancient aliens.”HN comment, 2024

What Hacker News said 3

RecommendsNzenJan 2024

“I enjoyed Kurzgesagt's video [0] about our ability to sense ancient aliens.”

Video about our ability to sense ancient aliens.

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Along the same lines as the pbs video, I enjoyed Kurzgesagt's video [0] about our ability to sense ancient aliens. [0] this video 12 minutes

Cites itrobbomacraeDec 2023

“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.

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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.

in “Would it be possible to detect an industrial civilization in geological record?” · view on HN
Cites itberniedurfeeMay 2024

“Kurzgesagt did a video on this.”

Advanced civilizations could have existed with little evidence remaining.

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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

in “New findings point to an Earth-like environment on ancient Mars” · view on HN