It is one of the great errors of the <i>&quot;SCIENCE!&quot;</i> attitude that it convinces people that if we do not have peer-reviewed papers, we <i>must</i> necessarily claim full and total ignorance and berate anybody who attempts to do otherwise.<p>I&#x27;m not obligated to stop using my brain just because we have no <i>SCIENCE!</i> papers to work with. In fact, you can&#x27;t. <i>You have no choice</i>. You <i>must</i> do your best with the data you have, because we do not have &quot;science&quot; for all the questions we encounter every day.<p>Given how standardized education is nowadays, as I complained in another comment, it isn&#x27;t exactly a far-out theory that when the same person, in the same context, switches to using tau, and sees a difference in results, that it may have something to do with using the more mathematically-sensible concept for teaching.