The Sagan Intruder Theory

The Sagan Intruder Theory suggests that intelligent extraterrestrial civilizations, if they exist, might intentionally avoid contact with humanity to prevent disrupting our natural development. Named after astrophysicist Carl Sagan, it proposes that advanced beings could observe us covertly, much like an "intruder" watching from the shadows, rather than openly revealing themselves. This concept helps explain why we haven’t confirmed extraterrestrial visits despite numerous reports—these civilizations might choose to remain hidden to avoid interfering with Earth's evolution or to prevent us from perceiving their presence.