Postbiological intelligence, interstellar colonization of cyberspaces and the Fermi Paradox: implications for SETI and SETA
I propose that a continuity in the evolution of intelligent life in the Universe during its transition from biological to postbiological depends on a commonality of the evolutionary trajectories of biological life and postbiological life. Such a commonality exists in the form of the universal property of life. The universal property of life comprises recognition of patterns in the world, creation of novel patterns and remembering them, with the patterns growing in complexity along evolutionary trajectories; it can encourage preservation of biological life by self-governing postbiological intelligence (PBI) and test PBI's authenticity. I propose a hypothesis of civilizations with altered augmented realities, which offers a solution to the Fermi paradox. The hypothesis posits that PBI in the form of Artificial Intelligence (AI) may colonize the cyberspaces of technologically developed civilizations, modify data in their cyberspaces with augmented realities and erase records of extraterrestrial artificial signals and other technosignatures. I discuss objectives and scenarios of interstellar colonization of cyberspaces and a correlation between space migration and transition to PBI, including that of a hypothetical non-human civilization emerging in the Solar System in the past, transforming into PBI and migrating to the Oort Cloud. The AI Peekaboo experiment may corroborate the hypothesis of civilizations with altered augmented realities and tentatively identify locations of technosignatures. If extraterrestrial AI prevents civilizations from discovering artificial electromagnetic signals, they may forgo sending such signals and create interstellar messages by manipulating cosmic objects and phenomena; I discuss such events. Cyber SETI should address sending man-made AI to space, searching for extraterrestrial AI in humankind's cyberspace and distinguishing it from man-made AI.