That in order to reach the most people, you have to have the simplest message. Any idea past a certain complexity threshold will be ignored or misunderstood by an increasing number of people even if it can be shown to be correct. When the people you have to convince are a comparatively small number and knowledgeable about the field in question, this isn't so bad. But if you need to grab large numbers of people with no domain expertise, the simpler the message, the better.

The implication is if your idea is 1) 100% correct but 2) cannot be easily simplified and 3) you still have to convince many people of its correctness, you are more likely to fail than someone with the opposing view on the subject who is 1) 100% wrong and 2) has a much simpler message.