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Why trying new things is so hard to do

Most people make relatively few personal experiments, in both small and big things, and the cost of passivity can be enormous.

New York

I drink a lot of Diet Coke: 2 litres a day, almost six cans' worth. I'm not proud of the habit, but I really like the taste of Diet Coke.

As a frugal economist, I'm well aware that switching to a generic brand would save me money, not just once but daily, for weeks and...

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