Scientist Paul Benioff proposed a quantum mechanical model of the Turing machine in 1980, which led to quantum computing being born. A quantum computer might be able to simulate things that a classical computer isn't realistically capable of, according to Richard Feynman and Yuri Manin.

• In 1981 Richard Feynman left the physics community questioning the capabilities of science and technology after he argued his beliefs regarding how a quantum mechanical system could not be properly represented by a classical system over 40 years ago.

• He stated, "...nature isn’t classical, dammit, and if you want to make a simulation of nature, you’d better make it quantum mechanical, and by golly it’s a wonderful problem, because it doesn’t look so easy..."

• At the time they didn't have much of the advanced technology we hold today so it was unclear how one could build such a machine; a miracle I would say.