There is a story about a Nazi state banquet in 1941 or so. A Nazi big shot (Goering?) was sitting next to a university professor and tried to make small talk.
“How are things in the Physics Dept, herr Professor?”
“We have no Physics Dept, herr Reichsfuhrer. They were all Jews and all have emigrated to America.”
For all Nazi Germany’s technological prowess, they applied it poorly. A German officer was captured during the Normandy invasion and was allowed to watch part of the American supplies coming ashore. He asked, “Where are the horses?”