What changed after 1971—and what the chart can and cannot establish.
Measured inCPI-adjusted units, both series rebased to Jan 1971. The bitcoin line follows one dollar converted at the Jul 2010 anchor price of $0.08.
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If you held it as cash
From Aug 1971 to April 2026, one dollar held as cash retains 0.13 CPI-adjusted purchasing-power units for every 1.00 unit it began with — 87% lost to CPI-measured inflation.
If you held it as bitcoin
Bitcoin did not exist yet. The first block was mined on January 3, 2009. Drag forward.
○ BTC $78,100 cached anchor · chart data through April 2026