You are not a visual learner or an auditory learner. The claim has a precise testable form, a required study design, and a research literature that overwhelmingly endorses it without using that design.
The famous $75,000 plateau and the study that contradicted it were both partly right. Finding that out required something research almost never does: the two authors sat down and re-analysed the data jointly.
The statistic every advisor quotes is real. So is the mirror image nobody quotes — and when a researcher ran both at once, the result was not the one the slogan implies.