The appeal to authority is "I'm older, therefore wiser regarding subject matter X". Being unsure is excellent. Relying on maxims such as "simple solutions are

The appeal to authority is "I'm older, therefore wiser regarding subject matter X". Being unsure is excellent. Relying on maxims such as "simple solutions are wrong" is not. Simple or complex, the only way to prove something wrong is by refuting it. For that you need reason. Maxims are not refutations.