Section 01
Purchasing power without oversimplifying inflation
Prices and money are related, but not identical
Inflation measures changes in prices across a basket of goods and services. Your household may experience a different rate because your rent, energy use and spending mix differ from the basket. Monetary policy matters, but supply disruptions, demand, wages and other conditions also affect prices. “Governments print money, therefore Bitcoin must rise” leaves out most of that picture.
Original example: nominal versus real value
A hypothetical $1,000 savings balance earns 3% over a year and becomes $1,030 before taxes. If the relevant basket rises 5%, its purchasing power in starting-year dollars is $1,030 ÷ 1.05, or about $980.95. That is a roughly 1.9% real loss. The precise formula is (1 + nominal return) ÷ (1 + inflation) − 1, not simply the account balance minus a price index.
Now imagine buying $1,000 of bitcoin that falls 30% while prices rise 5%. The ending $700 buys about $666.67 in starting-year goods. A fixed supply has not protected that buyer over this interval. This example illustrates separate risks; it is not a historical return calculation.
Questions to ask
- Which inflation measure and time period does a claim use?
- Is the quoted return before tax, fees and inflation?
- Does the evidence show reliable protection during the periods when protection was needed?
- Would a sharp asset-price fall force you to sell to cover living costs?
Takeaway: Scarcity is part of an investment thesis, not evidence of a guaranteed inflation hedge. Money for near-term necessities needs a different risk assessment.
Sources and further reading
- US Bureau of Labor Statistics: Consumer Price Index methodology and data
- Bitcoin.org: Bitcoin price volatility
Sources support the technical or regulatory points above. They do not endorse this course or predict investment returns. Rules and service terms can change.