A more serious criticism is that it takes only one ETC to break the embargo, just one immature civilization that decides to poke its fingers through the bars of the cage, for us to see them here on Earth. Furthermore, it fails to explain why we observe no evidence of them out there in the Galaxy. The proposition here is that intelligent life is ubiquitous, so where are their astroengineering projects? Where are their communications? It’s one thing for them to keep Earth free from development, but quite another for them to stop all activity on our account.
Wow
