At least one detector is enough to make visible astroengineering. And this is the problem with many suggested solutions of Fermi paradox: they explain why some civilization are not visible, but not why universal coordination between probably not communicating civilization is reached.
Circovic wrote another article with the same problem: “Geo-engineering Gone Awry: A New Partial Solution of Fermi’s Paradox”. https://arxiv.org/abs/physics/0308058 But partial solutions are not solutions in case fermi paradox.
At least one detector is enough to make visible astroengineering. And this is the problem with many suggested solutions of Fermi paradox: they explain why some civilization are not visible, but not why universal coordination between probably not communicating civilization is reached.
Circovic wrote another article with the same problem: “Geo-engineering Gone Awry: A New Partial Solution of Fermi’s Paradox”. https://arxiv.org/abs/physics/0308058 But partial solutions are not solutions in case fermi paradox.