I have discussed this topic at length with friends, typically when I am struggling to grind through "dry" material in an effort to understand something.<p>I have found that my neurons are extremely resistant to learning any kind of meaningful knowledge and are very receptive to learning all manner of useless knowledge. ;D<p>Psychologically, it seems odd to me that it is so hard to be disciplined when it comes to learning material when you know intellectually that you will grow from understanding it.<p>Sometimes I truly want to understand something, I am curious and I want to know the answer, but the work required to gain that understanding is sometimes so painful that I just decide to do something else instead.