If humans were to go extinct today, evidence of our civilization would likely be minimal after 1.5 billion years due to natural erosion and tectonic activity, which would subduct most surface structures. Some remnants, particularly those buried rapidly, like nuclear waste or certain subterranean constructions, might survive in altered forms. Space artifacts, such as satellites and lunar landers, could remain intact longer than terrestrial structures, with the Moon and Mars being potential sites for future discovery. Discussions also highlight the durability of plastics and the possibility of some human-made materials lasting for extended periods, although most will degrade over time. Ultimately, while some traces of humanity may endure, they would be significantly altered and difficult to recognize.
