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Our Stupid Brains in Our Busy World

To pay attention, this is our endless and proper work.

—Mary Oliver

How do you tie your shoes?

You’ve probably tied your shoes tens of thousands of times since you first learned to do so in grade school. The act is muscle memory by now. But could you explain it to somebody else?

How does a flush toilet work?

You’ve maybe flushed a toilet a hundred thousand times in your life. This machine is pretty simple, just a piece of curvy porcelain, a handle, and a few moving bits inside. No wires or chips are involved. But can you explain what happens when you push down that lever?

What did you eat for lunch two Tuesdays ...

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