The great scientist Alfred Wegener proposed that continents have moved, while other scientists such as T. C. Chamberlin argued against Wegener. Wegener's ideas eventually won, and are now widely accepted, because:

Wegener's ideas did a better job of predicting the results of new observations and experiments.

Explanation:

T. C. Chamberlin's idea about continents and their behavior was fixed and didn't allow to make predictions about the continental path, different from Wegener's theory which was more malleable and opened to changes, additions, and new propositions.