The Limits of Lifehacking: What Happens When You Approach Optimization?

I have a weird memory of my dad explaining math to me when I was a kid. I never actually learned real math, at least once it went beyond how to pocket extra lunch money, and still haven’t learned 30-odd years later.

But my dad was a good storyteller, and often taught me lessons using examples. One time he told me how if you stood across the room and moved halfway toward the wall, and then halfway again, and then kept moving only halfway over and over, you would never actually reach the wall.

As a ten-year-old, my mind was blown. You'll never reach the wall if you only move halfway, even if you spend 10 years moving over and over?

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