Hatred and fear of Jews (Judeophobia) has an unusual property: it keeps recurring across wildly different centuries, cultures, and political systems, but in a strikingly consistent shape — the same accusations (secret conspiracy, disproportionate power, dual loyalty, blood libels), just updated for whatever language each era uses. Many researchers who study prejudice assume that negative attitudes towards Jews follow the same basic patterns of hatred and fear of “the other.”

But recently, a renowned physicist, writing a book on persistent failures of reasoning, discovered a unique “pattern” concerning the Jews, that underlies the remarkable longevity of “the oldest hatred,” a moral inconsistency that both promotes the hatred and protects many who adopt it, including Jews, from any direct association with that violent hatred.

That reframing matters because it explains something people often find confusing: how the same accusations can jump from openly religious language, to nationalist language, to progressive human-rights language, without losing their basic shape or their force. If you can name the pattern once, you can recognize it faster the next time it puts on new clothes.

This day gives readers that vocabulary — not a new conspiracy theory of its own, but a framework for spotting an old one whenever it resurfaces.