📫 Prophecies & Fatigue – Weekend Words #075

Powerful reminders for a smarter weekend

March 14, 2026

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Your weekend words are: prophecies and fatigue.

In Tuesday’s email, we featured Nir Eyal’s new book, Beyond Belief (available now). Here’s an excerpt:

“Belief operates through three powers:

  1. Attention: Seeing What You Believe
    Believing is seeing. Beliefs filter what we notice. When I believed I was destined to be overweight, I noticed every failure and overlooked every success. When my beliefs shifted, I suddenly saw people who succeeded, strategies that worked, moments of progress. The world hadn't changed. My attention had.

  2. Anticipation: Feeling What You Believe
    Beliefs are emotional forecasts. When I believed a diet would fail, stress increased, cravings intensified, willpower felt harder. When I believed in a plan, I felt energized. What we expect shapes our biochemistry and our capacity to persist.

  3. Agency: Doing What You Believe
    This turns belief into action. When I believed my efforts didn't matter, I couldn't maintain consistency. When I believed my daily choices accumulated into change, I kept going—even through plateaus and mistakes.

Together, these three powers create a feedback loop. What you believe shapes what you see. What you see shapes what you expect. What you expect shapes what you do. And what you do provides evidence that reinforces or challenges your belief.

This is how beliefs become self-fulfilling prophecies.

The question isn't whether your beliefs will shape reality—they will. The question is whether you'll choose beliefs that expand possibilities or contract them.”

— Nir Eyal, Beyond Belief

“Over 20 years ago, I ran my first marathon in Alaska. At mile 18, my legs felt finished. I was certain I couldn’t continue.

I made it to the next aid station. Then the next. Then the finish.

I didn’t speed up. But I finished, which was more than felt possible.

That’s the Central Governor in action. Fatigue is a signal, not a verdict.

The question I ask myself now (in running, and elsewhere) is simple: is this a real limit, or is my brain being protective?

Usually, there’s more in the tank.”

— Brian Dye, Wellness Contributor for Slightly Smarter

More on cardio in Thursday’s email

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