  On the 50th anniversary of Bell's monumental 1964 paper, there is still
widespread misunderstanding about exactly what Bell proved. This
misunderstanding derives in turn from a failure to appreciate the earlier
arguments of Einstein, Podolsky and Rosen. I retrace the history and logical
structure of these arguments in order to clarify the proper conclusion, namely
that any world that displays violations of Bell's inequality for experiments
done far from one another must be non-local. Since the world we happen to live
in displays such violations, actual physics is non-local.
