Science says that continents can’t move, because Wegener had no credentials, and because many scientists can’t admit they were wrong.
Before his time – Wegener’s hypothesis moved ahead of confirming evidence too fast. Many previously unrelated observations were combined into a large theoretical jump. This is contrary to the normal progressive, step-by-step development of science.
Youthful outsider – Wegener was a man of many talents, but he had no formal training in geology. Thus, he had no credentials. At the same time, he had no preconceived position to defend or prove. At the beginning of the 20th century, no scientist was recognized until at least age 40; Wegener was in his early thirties when he first proposed continental drift.
Scientific inertia – Geology could not remake itself overnight. There was natural resistance to change, to accepting radical new ideas. Geologists had vested interests in their work and were reluctant to admit past misinterpretations of fundamental significance.