Was There a Technological Civilization Before Us? With Daniel Mills
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Did Earth’s long evolutionary timeline delay the rise of intelligent life, or are we the first technological civilization—at least the first to survive? In a new paper, Hard Steps and the Timing of Evolution on Earth, Dr. Daniel Mills explores what rethinking the Hard Steps model means for the search for extraterrestrial intelligence.
Mills, D. B. (2024). Hard Steps and the Timing of Evolution on Earth. arXiv preprint arXiv:2408.10293. https://arxiv.org/pdf/2408.10293
Dr. Daniel Brady Mills - https://www.danielbradymills.com/
00:05:03 – The role of oxygen in enabling technological civilizations
00:10:46 – Could Earth have produced an earlier technological civilization?
00:15:21 – Discussion on the Rare Earth Hypothesis
00:21:17 – Are habitable planets common, or is Earth unique?
00:26:04 – Why oxygen is crucial for life and technology
00:31:01 – Could high oxygen levels prevent civilization from developing?
00:36:27 – Evolutionary advantages of photosynthesis in intelligence
00:41:03 – Why oxygen and water might make Earth-like life common
00:46:14 – How evolution shaped Earth's habitability
00:51:07 – What an atmospheric gas profile could reveal about alien civilizations
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