![]() One of these must be incomplete or even wrong in some way. In fact, this isn't a full-blown paradox at all, just a flat contradiction between what, on the one hand, we believe to be the way the Universe works (its laws of nature, science as a rationale, reason itself for that matter) and, on the other, the Universe we seem to be living in. ![]() This has become known as the Fermi Paradox - in Fermi's own words, 'Where is everybody?' - and the more we learn, the more mystifying it becomes: the Search for ExtraTerrestrial Intelligence programme has been running for decades now, without detecting even a single stray signal, while at the same time the latest space probes are discovering new planets by the truck-load. Worse, our solar system may be more than four billion years old, but the Universe itself is more than thirteen billion - so there should have been Earths out there with their versions of us for aeons already. ![]() It struck physicist Enrico Fermi as very odd: if the laws of nature are universal, working in the same way all over the galaxy, and have produced the Earth, life (and us) here, then they should have produced Earths (and 'us') everywhere. ![]() Point a decent-sized radio antenna at any part of the sky, or just look up at it all on a cloudless night: not a trace of aliens - doesn't that strike you as odd? ![]()
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