Totally agree on this. It's never all at once. If anyone wants an interesting book recommendation - "I Will Bear Witness", by Victor Klemperer. This is the diary of Klemperer, who was a non-religious Jew in Nazi Germany, whose wife was "Aryan" and who was also a WWI vet, so he was somewhat protected. Fascinating book. Anyway, in regards to the "heads up" - the Jews weren't immediately put into concentration camps when the Nazis took over in 1933. What happened was that anti-Jewish edicts came slowly, step by step. The first one that affected Klemperer was that he could only teach Jewish students (he was a college professor). Then he lost his job (which was a government job). Then he couldn't own a car. Couldn't have a pet. Couldn't walk in parks, couldn't walk on roads next to parks. All kinds of crazy new laws, slowly tightening the screws.