The I Ching (Book of Changes) is a 3,000-year-old Chinese divination system based on 64 hexagrams — six-line figures built from combinations of solid (yang) and broken (yin) lines. It's the oldest continuously used divination system in the world and one of the foundational texts of Chinese philosophy.
The Binary System
Each hexagram consists of six lines, each either solid (━━━) or broken (━ ━). Six binary positions, two states each: 2⁶ = 64 possible hexagrams. Leibniz, the inventor of modern binary mathematics, acknowledged the I Ching as a precedent by roughly three millennia. This isn't coincidence — the I Ching is, at its core, an information system.
How It's Consulted
Traditionally, you divide 50 yarrow stalks through an elaborate sorting process to generate each line. The modern method uses three coins tossed six times. Each toss produces a line that may be "changing" — transforming from yin to yang or vice versa — generating a second hexagram that shows the situation's trajectory.
What Makes It Different
The I Ching doesn't give you symbols to interpret — it gives you texts. Each hexagram comes with a judgment, an image, and commentary on all six lines. You're reading philosophy as much as divining. In Chaos Tarot, the full 64 hexagrams are available with traditional texts and cyberpunk reinterpretation.