“InflationAdjuster”, Gwern2019-03-27 (CSS, typography/subscript, economics; backlinks; similar)⁠:

Experimental Pandoc module for implementing automatic inflation adjustment of nominal date-stamped dollar or Bitcoin amounts to provide real prices; Bitcoin’s exchange rate has moved by multiple orders of magnitude over its early years (rendering nominal amounts deeply unintuitive), and this is particularly critical in any economics or technology discussion where a nominal price from 1950 is 11× the 2019 real price!

Years/dates are specified in a variant of my interwiki link syntax; for example: $50 or [₿0.5](₿2017-01-01), giving link adjustments which compile to CSS-adjusted subscript+superscript.

Dollar amounts use year, and Bitcoins use full dates, as the greater temporal resolution is necessary. Inflation rates/exchange rates are specified as constants and need to be manually updated every once in a while; if out of date, the last available rate is carried forward for future adjustments.

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