Robert Oppenheimer and John von NeumannSometimes even men from the future need a little help.It’s quite hard to escape Oppenheimer at the moment. So it’s a good opportunity to go back to the 1940s and consider the contribution of someone who knew and worked with members of the Manhattan project.I recently came across a film tribute to John von Neumann, made in 1966 by the Mathematical Association of America. Grainy and noisy in its current YouTube incarnation, it’s nonetheless riveting, with foo...