HackerTube.dev

Are There Lost Alien Civilizations in Our Past?

Kurzgesagt – In a Nutshell · 14.2M views · 2022-03-01 · 10:29

Open on YouTube ↗

If playback is restricted in your region, try opening the original video. Use Mark watched to add it to your marked videos.

Overview

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.

On Hacker News

HN brings it up in threads on ancient civilizations and detecting past technology in geology.

Recommended by 1 HN people across 1 months · HN mentions 2023–2024

Topics

Geology & earth scienceCosmology & astrophysics
Search by tags
silurian hypothesisgeological recordfermi paradoxkurzgesagt

What people said

Nzen · 2024-01 · Recommendation

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

Read the original HN comment ↗
berniedurfee · 2024-05 · Reference

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. [VIDEO]

Read the original HN comment ↗
robbomacrae · 2023-12 · Reference

Kurzgesagt also: [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.

Read the original HN comment ↗

Sources

Video by Kurzgesagt – In a Nutshell, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

Views, duration and playback status refresh separately from the published catalog. When an update fails, existing data remains visible.

Selection checks
  • SaaS & AI candidates: Topic keywords do not match
  • Editor-approved picks: Editorial review is required

Rule matches identify candidates. They do not guarantee video quality or financial results.

About the library and its sources