Halving Seasonality Map

Maps two recurring time windows onto the Bitcoin log price line, both measured in weeks elapsed since each halving and derived entirely from the real price record: the window in which cycle tops have historically formed, and the window in which cycle bottoms have historically formed. Each window is the empirical envelope of where price actually peaked and bottomed, not a fixed assumption. The reference is computed on the mature cycles only (the 2016, 2020 and 2024 halvings for tops; 2016 and 2020 for bottoms); the first cycle around the 2012 halving is displayed but greyed out and excluded, because that early, thin market topped far earlier and would distort the envelope. Every real top and bottom is marked with a dot, each halving with a vertical pin, and a cursor shows the current position in weeks-since-halving relative to the two windows. The upcoming windows the market has not yet reached, together with the next cycle, are projected forward in a lighter, dashed style. A descriptive reading of a historical regularity, not a timing instruction.