Arvin Ash

Are we alone in the universe? Where are all the aliens? Fermi Paradox Solutions & Drake Equation (2019x25)

Udgivelsesdato: Maj 16, 2019

Do Aliens exist? Are we alone in the universe? Where is everyone? Fermi Paradox and Drake Equation: Where is everyone? You probably already know that there are more stars in the universe than all the sands on all the beaches of earth. In fact, Keppler data shows that just within our own Milky Way galaxy, there may be 10 billion earth-size planets orbiting sun-like stars in the habitable zone of its solar system. Physicist Enrico Fermi, in the 1950’s, asked why, given the vast number of potential planets with life, haven’t we been contacted by aliens yet? Fermi reasoned that any civilization could colonize the galaxy by building AI robot probes that could self-replicate as they journeyed beyond their home planet. Even though the distances between habitable planets are much too vast to be traversed in a human lifetime, the theoretical robots would have had millions or even billions of years to make the journey. This seems to be a reasonable assessment because when our instruments look out into the universe, we can see that the materials and conditions for life that are present here on earth, But the fact is that our instruments can see no evidence from all our observations of any tell-tale signs of intelligent life anywhere in our solar system, our galaxy or the rest of the observable universe. In order to detect the kind of signal that Fermi was talking about, that life also has to be super intelligent…One that sends out electromagnetic signals. And in order for us to detect intelligent life on other galaxies, that species would have to be a space colonizing species. Such a galaxy should light up unnaturally. So even having intelligent beings on a planet is not enough, because many intelligent beings have evolved on earth, but super intelligence – space-faring species, like us humans, only evolved only once over 4 billion year on earth. The Observation selection effect creates a bias in our thinking because no matter how unlikely super intelligence