There will be strangely distributed concentrations of various materials in any sediment layer from our period, such as iron, copper, aluminum, hydrocarbons, and various minerals. A lot of these will be in relatively small areas and also laid out in clearly artificial geometric patterns, especially in straight lines.
That layer will also include, worldwide, levels of radioisotopes that do not occur naturally. The same way that there is an Iridium layer on the soils of 65MYA showing the asteroids that killed the dinosaurs, the current sediments being laid down have traces of plutonium and other materials that will exist until the sun becomes a red giant and swallow the Earth.
Not to mention, the carbon dating of everything currently on the surface will have a stark difference from the carbon dating of everything currently below the surface, because nuclear power and weapons permanently offset it. They’ll be like “what a strange unexplained phenomenon…” and then after they figure out how to do it themselves they’ll think “OH. That’s how that happened. Huh.”
There will be strangely distributed concentrations of various materials in any sediment layer from our period, such as iron, copper, aluminum, hydrocarbons, and various minerals. A lot of these will be in relatively small areas and also laid out in clearly artificial geometric patterns, especially in straight lines.
That layer will also include, worldwide, levels of radioisotopes that do not occur naturally. The same way that there is an Iridium layer on the soils of 65MYA showing the asteroids that killed the dinosaurs, the current sediments being laid down have traces of plutonium and other materials that will exist until the sun becomes a red giant and swallow the Earth.
Not to mention, the carbon dating of everything currently on the surface will have a stark difference from the carbon dating of everything currently below the surface, because nuclear power and weapons permanently offset it. They’ll be like “what a strange unexplained phenomenon…” and then after they figure out how to do it themselves they’ll think “OH. That’s how that happened. Huh.”