December 21, 2021
Q&A 166: Does an Infinite Universe Solve the Fermi Paradox? And More...
In this week's Questions and Answers show, I explain how an infinite Universe could be the ultimate answer to the Fermi Paradox, where the energy for tidal heating comes from, and why are there always so many asteroid scare stories in media?
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Comments (1)
M
Max Eliaser · December 21, 2021
Regarding the question about future scientists being able to discover evidence of an extinct human civilization, I believe there is a pretty good way to detect this. Scientists study fossil pollen all the time to learn about the history of different types of plants. Our agriculture would create a distinctive and detectable pattern in the fossilized pollen, which would be pretty hard to miss as it would appear simultaneously in strata all over the world.