Watch Signal 6
The math, step by step
BLS Table 1 lists the CPI-U (not seasonally adjusted, 1982-84 = 100) at 334.980 for August 2026. FRED's CPIAUCNS series, which carries the same BLS data back to 1913, shows monthly values from 9.7 to 10.1 across 1913. Their average is about 9.88.
Divide 9.88 by 334.98 and you get 0.0295. A dollar's buying power relative to 1913 is about 2.95 cents, or a loss of about 97%. Flip it: 334.98 divided by 9.88 is about 33.9, so what cost $100 in 1913 costs about $3,390 now. Over roughly 113 years that is an average of about 3.2% a year, compounded.
The BLS inflation calculator works the same way using annual or monthly index values. It will give a slightly different answer depending on which 1913 month you pick, which is one reason this page says "about."*
How solid is the 1913 number?
BLS says the modern CPI grew out of World War I cost-of-living studies and that in 1919 its data were estimated back to 1913. It began publishing separate indexes for 32 cities in 1919, and later expanded to the 34 largest cities and a weighted national average. So the 1913 reading is a reconstruction from a narrower set of prices than today's index.
The basket also changed. The early index was built from a narrower group of buyers and goods than today's, which covers a much larger share of the population and a very different mix. The 97% is useful as an order of magnitude, not as a precise measure of one household's cost of living.
What the figure leaves out
A fall in the dollar's purchasing power says nothing by itself about wages, savings or how much a household could buy over time. Pay, interest, taxes and the quality of goods all changed too. A $1 pen in 1913 and a $1 pen now are not the same product.
Use the number to see how large long-run price changes can be, not to rank eras. For a recent window, our page on what $100 from 2019 is worth today uses the same BLS index.
Rome: what the coins show
The Roman denarius is the cleanest documented case of a government cutting the metal in its money. NGC reports that denarii under Augustus through Claudius were about 98% silver. Nero's reform in 64 AD cut the purity to about 93% and the weight by about 12.5%, after Rome's great fire, and later emperors lowered it in steps. By Gallienus' death in 268 the double-denarius held 5% silver or less, in some cases about 2.5%. A ScienceDirect paper on the denarius describes the final stage as a copper-cored coin with a thin silver surface, by about 280 AD, after which Diocletian rebuilt the system.
That supports "Rome clipped its coins" in the sense of debasing the silver content. The video's wording is "clipped," which strictly means shaving the edges of individual coins; the sources here describe official debasement. "Every empire ends the same way"* is a sweeping claim this page does not support. Rome's decline had military and political causes too.
Britain: what the debt numbers show
The Office for Budget Responsibility's 300-year public finance database shows the British state financed wars with borrowing. Debt reached close to 180% of GDP after Waterloo in 1815, 143% in 1918-19, 135% when World War II began in 1939 and 249% at its end, an all-time high. The ratio then fell to 24% by 1991-92 and rose again to 100% in 2022-23.
That supports "Britain borrowed heavily for its wars." It does not show that Britain borrowed "against an empire it couldn't carry,"* which is an interpretation. It also does not measure the purchasing power of sterling, which this page has not checked. The debt ratio fell mostly through growth and a long postwar period, not through a collapse.
The pattern, and what it does not say
Put the three side by side: a documented 97% fall in the dollar's buying power by CPI, a documented fall in Roman coin silver, and documented war borrowing in Britain. They show that governments have often paid for large commitments in ways that left money worth less over time. They do not show that the dollar will fall by a particular amount, that any empire ends the same way,* or that holding any particular asset will protect you.
The video's line that those holding real things quietly held on* is retained from the video. We have not checked it against data here, and this page does not recommend any asset or promise a return.
Common questions
Is the dollar going to collapse? This page makes no prediction. Its question is how much the price level changed over 113 years, not what happens next.
Is 97% the same as 97% inflation? No. Prices rose about 3,290% (from 9.88 to 334.98). That is a 97% fall in what one dollar buys, and the two numbers describe the same change from opposite sides.
Why does the BLS calculator give a different answer? It uses its own start-month or annual-average choice and rounds, so small differences are normal.
Is this investment advice? No. It explains a published statistic and some history.
Asterisk notes
*97% and $3,390 are approximate, computed from CPI-U (BLS, via FRED) for the 1913 average against August 2026; pre-1920 data are estimates. "Every empire ends the same way," Rome and Britain as a repeating pattern, and "those holding real things quietly held on" are retained from the video, with the limits explained above. Not investment advice.
Related tool
Price vs inflation compares a price change with the change in general prices. Read its date labels before treating a result as current.
Sources checked October 7, 2026
FRED: CPI-U all items, series CPIAUCNS (BLS data from 1913): https://fred.stlouisfed.org/series/CPIAUCNS
FRED: CPIAUCNS data table: https://fred.stlouisfed.org/data/CPIAUCNS.txt
BLS: CPI-U Table 1, August 2026: https://www.bls.gov/news.release/cpi.t01.htm
BLS: CPI inflation calculator: https://data.bls.gov/cgi-bin/cpicalc.pl
BLS: history of the Consumer Price Index: https://www.bls.gov/opub/hom/cpi/history.htm
NGC Ancients: decline of Roman silver coinage: https://www.ngccoin.com/news/article/6842/NGC-ancient-coins/
ScienceDirect abstract: the decline and fall of the Roman denarius: https://www.sciencedirect.com/science/article/abs/pii/104458039290116Y
Office for Budget Responsibility: 300 years of UK public finance data: https://obr.uk/docs/dlm_uploads/300-Years-of-public-finances-Accessible-PDF.pdf
CEPR: 323 years of UK national debt: https://cepr.org/voxeu/columns/323-years-uk-national-debt
Limits
Educational explanation, not tax, legal or investment advice. Historical claims and examples are labelled. Nothing here promises a result for any family.