there remains a credible possibility that grabby aliens would benefit by sending a message that was carefully designed to only be detectable by civilizations at a certain level of technological development
oh wow, after reading this, I came up with the same explanation you wrote in the following 2 paragraphs just before reading them 😄
oh wow, after reading this, I came up with the same explanation you wrote in the following 2 paragraphs just before reading them 😄