In real life, it's not who crossed it. The so-called cases may have spread with the exposure of urban legends and street literature. Of course, there are similar stories abroad. We just can't reach it. For example, Wang Mang is a traveler, so I won't go into details. But I have never heard of Saint-Simon, Fourier and others' utopian socialism as travelers. Because the story of Wang Mang's restructuring is a household name, we don't know enough about utopian socialism.