"<a href=""https://www.youtube.com/watch?v=hppbxV9C63g&amp;t=18m08s"">18:08</a> How many people with an IQ score of 70 would it take to complete a very difficult task that takes 10 people with IQ scores of 140 to do in 3 months? I'm not joking. It's definitely not 'twice as many people' as some explanations of IQ seem to imply."