The same idea as the famous Bitcoin rainbow chart, applied to Zcash: a logarithmic regression fitted to ZEC's entire daily price history, with nine colored bands spaced evenly in log space around the fit. The bottom bands have historically marked deep value, the top bands mania. It is a way of seeing where today's price sits relative to Zcash's own long-run trajectory rather than yesterday's headline.
Daily ZEC-USD closes are fitted as log10(price) against the natural log of days since the Zcash genesis block (October 28, 2016). The bands are fitted to the post-November-2024 halving regime: Zcash's 2018-2024 bear market broke so hard that a full-history regression slopes downward, while the halving-era repricing established a new trend. Fitting that regime, the fair-value line passes $6,000 in 2028 and $100,000 around 2030, with the upper bands crossing $200,000 inside the projection window. Ten bands, equal log spacing, one of them aspirational, structure cross-checked by a panel of independent AI models. A regression is a ruler laid on the past, not a promise: full write-up.