The Universe Might Be Teeming with Strange Forms of Consciousness

Key Points:

• Philosophers Eric Schwitzgebel and Jeremy Pober propose that consciousness may not be limited to carbon-based life on Earth but could arise in diverse physical substrates across the universe, reflecting a concept they term "substrate flexibility."
• They argue that, given the vast number of planets and potential life forms, it is plausible that many behaviorally sophisticated species with different substrates could be conscious, challenging the idea that consciousness is unique to Earth-based life.
• The researchers highlight the difficulty in defining consciousness universally, acknowledging that extraterrestrial consciousness might be fundamentally different and hard to recognize by Earth standards.
• While they do not claim extraterrestrial consciousness definitely exists, Schwitzgebel and Pober emphasize that it is scientifically reasonable to theorize about consciousness beyond Earth, inspired by Copernican mediocrity which suggests Earth is not special in the cosmos.
• Their framework suggests the observable universe could host an enormous number of conscious species, some possibly composed of unfamiliar substrates, expanding the scope of where and how consciousness might emerge.