Part Three — The Loop Tongue
Sketching a Loop
“A picture is worth a thousand words.”
Most people never draw these. If you’re not someone who reaches for a pen mid-conversation, skip to the next chapter — only the Practice Set in Chapter 7 uses it.
For everyone else: words alone still carry some of the linear bias baked into speech, and four marks remove more of it. Learnable in under a minute, sketchable on a napkin.
An arrow (→) means “feeds into.” Anxiety → checking the phone.
A closed loop (↻) placed after a chain means the chain returns to its own start — a reinforcing Loop, where each lap makes the next lap more likely. Anxiety → checking the phone → brief relief → faster anxiety next time ↻
A half-loop (⤸) means a balancing Loop — one that dampens itself rather than reinforcing, returning toward a middle instead of accelerating away from it. Overwork → exhaustion → forced rest ⤸
A nested bracket [ ] around a chain means “this whole pattern is itself one Local Rule inside a larger version of the same Loop, one scale up.” [Anxiety → checking the phone ↻] → a culture of distraction, built the same way, one person at a time.
One more thing worth knowing, because it tells you which mark to actually draw rather than leaving it to guesswork: every arrow in a chain carries a sign, and the loop’s own type follows from those signs exactly, not by feel. An arrow is “+” if more of the cause produces more of the effect, “−” if more of the cause produces less of it. Trace the whole loop, note the sign of every link, and count how many are negative. An even count — including zero — makes it reinforcing. An odd count makes it balancing. Anxiety → checking the phone is a “+” link; checking the phone → relief is a “+” link; relief → faster anxiety next time is a “+” link — zero negatives, even, reinforcing, exactly matching the ↻ above. This isn’t a metaphor for how loops work. It’s the actual arithmetic underneath the mark, and it means you never have to guess which symbol to draw — you can derive it, every time, from the chain itself.
That’s the entire notation — not a replacement for a formal systems diagram, just the version two people can use standing in a kitchen, mid-argument, when one of them says “wait, draw what you mean.”