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A comment on The Silurian Hypothesis. Parent comment

Re:The Silurian Hypothesis by red_admiral on Tuesday November 12, 2024 @06:59AM (#42114837)
Aren't the oldest fossils we know of assumed to be something like 500 million years old?

Or you could try leaving particular "signatures" of radioactive elements. Not ones with a short half-life, obviously, but xenon-124 lasts pretty long, tellurium-128 will survive anything except the heat death of the universe, and there's a few others like that.

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Re:The Silurian Hypothesis by yencabulator on Tuesday November 12, 2024 @03:17PM (#42119261)
Sure, how many >300 million year old fossils have we found related to how many animals lived at that time, over that span of time? The problem is many methods might work -- literally you accidentally falling on a trip to Florida might work -- but the probability can be very low.
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