China · CNY
The same story, told 3 ways: in CNY, prices only rise. Measured in Bitcoin satoshis, the picture inverts. Each chart says what it is — observed data or a labeled model.
01 · Prices in China keep one direction
Observed · World Bank CPI
The official consumer price index rose 15% over the last decade — the CNY buys steadily less of the same basket.
02 · One CNY, measured in sats
Observed · FX snapshots × BTC closes
2014: 1 CNY bought 51.8k sats. Today: 232. Log scale — the fall is the story.
03 · The burger agrees
Observed · The Economist Big Mac index
Independently observed prices for the same product, twice a year — the observed cross-check on everything above.
Go deeper: everything China buys, in sats · where the CNY ranks in the Fiat League · your own salary in sats
Sources: World Bank CPI (observed) · ECB/market FX snapshots (observed) · SatsAtlas BTC daily closes · The Economist Big Mac index where shown (observed, CC BY 4.0). The salary chart is a labeled model (constant salary, BTC-only).