You can learn anything, but you can’t learn everything. Be careful what you take into your brain-attic, since there’s only so much room up there. Pick your subjects with a sense of purpose.

For example, if your goal is to bring a cinematic quality to video games, you should stuff your brain with the history of film, graphic novels, and representational art. You should pay attention to dance, sports, and music. You should master the digital tools of your trade, and take a strong interest in emerging technology. While you can certainly take up dog training on the side, starting a whole second career in dental hygiene ...

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