As early as 1959, Richard Feynman, the Nobel Laurete, said that nothing in the laws of physics prevented us from arranging atoms the way we want... it is something in principle that can be done; but in practice it has not been done because we are too big. He delivered a talk, "there is plenty of room at the bottom". Now "Nano" has moved from the world of the future to the world of the present.
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