Me in 2007: Building something is easy. Evaluating what you build is hard. Iterate between the two as fast as you can.

Stefan Lesser in 2023 (paraphrased): Building helps understand ourselves through the world, and understand the world through ourselves.

Me now: Building things is easy. Evaluating what you build is hard. It requires lots of attention. Therefore, build things that you want to pay lots of attention to.

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