Recently saw PRESSURE, a movie about the meteorology behind the D-Day landings at Normandy in 1944. It was somewhat fictionalized, a docudrama rather than a documentary. But if you want the underlying story without the fictionalization, go to The Real Story Behind 'Pressure,' a WWII Drama About James Stagg's D-Day Weather Forecast (Smithsonian). General Eisenhower had to make the call, "we go" or "we hold until the storm passes." Or maybe "we look for a window within the storm." And he had to make it in epistemological circumstances that we have to work to recreate today. After all, they didn't have satellites in orbit conveying detailed information about every cloud around the globe. They had weather stations, high-altitude balloons, lots of detailed historical records that experts could pore over without finding decisive patterns for a particular call-- and guesswork. Lots of guesswork. The hero of the story is James Stagg, a Scot...