Willpower is not a limited resource — the ego-depletion myth
Eyal debunks ego depletion, the idea that willpower drains like a phone battery. When Carol Dweck replicated the studies, the only people who ran out of willpower were those who believed willpower was limited. Self-limiting beliefs become self-fulfilling: believe your brain is broken or the world is hijacking it, and you act accordingly.
- Ego depletion was popularised with claims like sugar-lemonade boosting willpower.
- Dweck's replication found depletion only in people who believed willpower was finite.
- Willpower is not limited unless you believe it is.
- Self-limiting thoughts shape behaviour.
“the only people who actually did run out of willpower... were people who believed that willpower was a limited resource”