"At minute <a href=""https://www.youtube.com/watch?v=hppbxV9C63g&amp;t=10m55s"">10:55</a> Richard Haier said short term memory is indicative of the g-factor. It isn't working memory (eg. repeat digits bachwards) is", short term memory (repeat digits forwards) seems to bear very little relationship to g.<br>He knows this he just wasn't careful enough when talking.