What happens if the United States of 1905 and the United States of 2022 exchange places?
Short answerModern America would dominate the 1905 balance of power, perhaps preventing the familiar First World War but risking an entirely different conflict.
NotesThe modern United States would arrive in 1905 as the world’s strongest power by an enormous margin. That advantage might prevent the First World War from unfolding in its familiar form, but it would not guarantee peace. Modern leaders would encounter governments whose assumptions about force, diplomacy, and the value of life differed sharply from their own. The answer therefore treats technological supremacy as a source of both deterrence and dangerous political misunderstanding.