President Joe Biden is betting that repeating himself is smart politics as he seeks reelection. The Democratic president keeps recycling his greatest hits. If you've heard one of Biden's recent speeches, you've basically heard them all. Biden has zingers like, "This is not your father's Republican Party." He's got a geometry-based explanation on how to grow the economy: "from the bottom up and the middle out." He knows what the middle class needs: "a little bit of breathing room." You're sure to keep hearing those refrains in the year-plus leading up to Election Day 2024. The repetition is a strategic choice with a scientific basis in a society loaded with distractions.