So I just got Anthology 3, and can't believe how these guys still captivate me. I figure you can learn all of economics by thinking about The Beatles. Here's the first installment, and feel free to offer your own lessons.
Lesson 1: What are the odds that 4, or 3, or even 2 musical geniuses would find themselves together in a small town? Answer: slim to none. It is more likely that one genius inspired the rest to raise their level of performance. Probably John Lennon was the original genius, but soon the others came to match his talent, especially the young and formative George Harrison. Even George's final album, 32 years after the break up, is pretty outstanding. This is how human innovation works, largely through peer effects. And this is why so much of human accomplishment has occurred in the West.
Addendum: To clarify, the mechanism at work here is not merely hero worship, but rather peer effects, or more precisely, acculturation, or self-acculturation, as Tyler has called it. That is, John inspired George, who inspired John. John need not be a genius for the group to produce great music. In fact, the first few albums are not great, that only happened later, which suggests acculturation as opposed to genius.