Collatz total stopping times --- how many map steps (counting both the n/2 halvings and the 3n+1 steps) each integer takes to reach 1. Wildly erratic, with typical values around 7·log₂(n) (asymptotic mean 3·ln(n)/ln(4/3) ≈ 7.23·log₂(n); fitted slope ≈ 7.0 over n in [1e4, 5e5]) but enormous outliers
Standard analysis sees: no strongly notable standard properties. The atlas finds no named structure, but the source is distinctively extreme on Spirograph:gear_rationality (-3.1z) — beyond what the standard bank predicts for it. It sits beside Surface Wind (ORD 5-min) in the atlas (standard-bank rank 60) — a neighbor conventional features miss.
Spirograph:gear_rationality | -3.1z | bank-miss 1.0σ |









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/phi_spectrum/Collatz_Stopping_Times.png)










/default/Collatz_Stopping_Times.png)
/default/Collatz_Stopping_Times.png)


| Nearest neighbor | Distance | |
|---|---|---|
| Surface Wind (ORD 5-min) | 4.18 | cross-origin |
| Earthquake Magnitudes | 4.29 | cross-origin |
| Poisson Counts | 4.32 | cross-origin |
Navier-Stokes › Navier-Stokes:ess_rescaling_gain | rank 307/307 | -0.2047 |
Septagonal (Danzer) › Septagonal (Danzer):z_conjugate | rank 303/307 | -0.6062 |
Visibility Graph › Visibility Graph:degree_r_squared | rank 5/307 | 0.9600 |