Contents

What has surfaced

Not everything has surfaced. Not yet.

01 — The Constant

α = 1⁄137

The fine-structure constant, and the century of measurement it took to pin it down.

02 — The Angle

137.5°

The angle plants use between one leaf and the next, and the physics behind why.

03 — The Sequence

1, 1, 2, 3, 5, 8…

A rule simple enough for a child, reached independently by poets, kings, and insects.

04 — The Prime

2, 3, 5, 7, 11…

The numbers nothing else is built from, and where the world hides its secrets inside them.

05 — The Soul

137

A physicist and a psychiatrist, a decade of letters, and a number neither could quite explain away.

06 — The Disagreement

5.5σ

The two best measurements of α ever made, and why they still don't agree with each other.

07 — Kronos and Kairos

Kronos, Kairos

Two Greek words for time, a statue with a bald spot, and what a clock can and can't tell you about why.

08 — Deep Time

Two Billion Years

A nuclear reactor no one built, light older than the Sun, and a number that hasn't moved.

09 — The Wager

A Case of Wine

A neuroscientist, a philosopher, a bar in Bremen, and a bet about consciousness that took twenty-five years to lose.