That&#x27;s a very common sentiment, but a mistaken one. Theories do not get accepted only if they match the predictions of the previous theories. People value other features besides accuracy of predictions, like simplicity and explanatory power. Just recall how Kopernik&#x27;s theory of solar system got accepted. It had worse predictions than Ptolemy&#x27;s scheme at the time it was introduced; Ptolemy&#x27;s scheme was way better in accuracy, but utterly complex and explained little.