Spinnin' around. It seems it almost has completed its symmetrical structure for the last 40 years or so. What would be next? A permanent shift upwards like when it came into the cycle 40 years ago? Spinning further round? Drop down where it first came in from? I don't have the answer, maybe you do?
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Seems its desired way of going was down. 12 edging touches. This is not "random walk".