Phyllotaxis
the spirals are counted, not admired
Concept

Transient — where it appears

The stretch at the start of a run in which a pattern is still settling out of its seed, discarded before any statistic is taken.

Named by 2 essays across 2 fields — each of them below, with the objects they name alongside it.

-0.50000.500100200300nodes per rung of the ladder — how slowly the shoot climbscorrelation between one divergence and the nextthe rise held fixed — -0.68no noise · 185, 254, 323, 438, 553, 922, 1474 nodesthe threshold is in the rate, not the rule

The memory was the rise

The previous phase measured a lag-one correlation of 0.54 in a noiseless divergence sequence and called it the sequence's own memory. Hold the rise fixed and there is no sequence at all — every angle identical — and under a disturbance the correlation is negative. The 0.54 belongs to the pattern chasing an equilibrium that is moving under it.

cylinder · sequence -0.50000.500100200300nodes per rung of the ladder — how slowly the shoot climbscorrelation between one divergence and the nextthe rise held fixed — -0.68no noise · 185, 254, 323, 438, 553, 922, 1474 nodesthe threshold is in the rate, not the rule

A shoot too fast to remember

Sweep the rate at which a stem climbs the ladder and the correlation between one divergence and the next changes sign — negative below about fifty-five nodes per rung, positive above it, with the flip inside one step of the grid. The instrument the previous phase proposed is unavailable on a fast shoot, and nothing said so.

emergence · rising

Named alongside it

The objects these essays reach for when they reach for this one.

AutocorrelationCylinderDivergence angleEnsembleEquilibriumFeedbackMeasurementNoiseThe placement ruleRiseSelf correctionTracking

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