Curriculum·S206 Macro, Cycles, and Narrative·about 30 min
Cycles, contested
By the end of this lesson you can
- →Count the independent observations behind a cycle claim, and state what inference that sample supports
- →Distinguish a mechanism that would produce a cycle from a pattern observed in a series
- →Explain why a repeating chart shape is the weakest possible evidence for a repeating cause
- →Hold a cycle view at a confidence the sample supports, and state what would update it
Sophomore · enrolled learners
This lesson opens with The sample size behind the four-year cycle.
- What happened
- This is a structural finding rather than a named event, and it is labeled as such. The four-year cycle thesis holds that bitcoin's price follows a repeating pattern anchored to its issuance halvings, which occurred in 2012, 2016, 2020 and 2024. Counting completed intervals between halvings, that is three observations as of the fourth halving. The statistical objections raised against the stock-to-flow model, which formalised a version of the same thesis, apply to the underlying claim: regressing trending non-stationary series against each other produces high explanatory power without content, the specification was argued to be circular, and correcting for its look-ahead structure was said to reduce explanatory power to nothing. No amount of subsequent price history increases the number of completed cycles, which grows by one every four years.
- The decision point
- The claim is not that the cycle thesis is false. It is that three completed observations cannot distinguish a real periodicity from a coincidence, that this is a property of the sample rather than of anybody's analysis, and that the sample cannot be enlarged by looking harder. A view held with high confidence on three data points is a statement about the holder rather than about the market.
What you will be able to answer
- →How many completed four-year intervals exist?
- →Why is a repeating chart shape weak evidence?
- →What would strengthen a cycle claim?
- →What confidence does a three-observation sample support?
Orientation and Year One are open: anyone can read them without an account. From Year Two onward the lessons are for enrolled learners, because progress through the later years only means anything if it is tracked against a record.
It is free. We do not sell the list and there is nothing to buy at the end of it.
Sources and review
- https://bitcoinmagazine.com/markets/why-bitcoin-stock-to-flow-is-not-useful
- https://www.coindesk.com/markets/2020/06/30/why-the-stock-to-flow-bitcoin-valuation-model-is-wrong
- https://mises.org/mises-wire/critique-bitcoin-stock-flow-model
- https://www.imf.org/-/media/files/publications/wp/2023/english/wpiea2023163-print-pdf.pdf
Confidence low·Volatility high·Reviewed 2026-08-06·Owner unassigned
Contested
This lesson takes no position on whether a four-year cycle exists. It argues that the available sample cannot establish one, which is a different and weaker claim, and it must not be revised into a debunking. If the thesis is correct, the evidence for it will still be inadequate for some decades.
Halving dates are facts and the price behavior around them is a matter of measurement. What is contested is whether the observed pattern reflects issuance, reflexive expectations about issuance, coincident macro conditions, or nothing. Present the candidates without adjudicating.
Marked low confidence deliberately. A course lesson about a contested claim should carry a confidence rating consistent with the state of the evidence.