A limitless supply of spare organs, hard evidence for aliens and a machine that puts you in the mind of an animal. These are some of the predictions about the world of 2056 by a batch of the planet's most prominent scientists, including the psychologist Steven Pinker, the philosopher Dan Dennett, the astronomer royal, Sir Martin Rees, and the architect of the Beagle 2 Mars mission, Colin Pillinger. New Scientist magazine has assembled their thoughts to mark its 50th anniversary, and high on the list was proof that we are not alone. A visit from little green men in flying saucers seems unlikely by 2056, but the experts are convinced the universe will soon feel a less lonely place. Freeman Dyson at the Institute for Advanced Study in Princeton is undeterred by our failure to find any cosmic neighbours so far. He told the magazine: "That proves life is rarer than we hoped, but does not prove that the universe is lifeless." Once we find proof of extraterrestrials, further discoveries will follow quickly, as we will know what we are looking for, he said. Paul Davies, a physicist at Arizona State University in Tempe, speculated that we may not have to look far. "There could be aliens right here, under our noses. Most life is microbial, and you can't tell just by looking whether a microbe is 'our' life or alien," he said. "The search for terrestrial aliens has only just begun. If they are here, they could be identified soon." "How different might alien life be?" asked Chris McKay at NASA, "It might be as different as English and Chinese." Life on Earth will also be transformed, scientists predict, with farms designated to grow human organs. By 2056, even the most sophisticated medicine of the 20th century will begin to look barbaric.
