Learn & Reference

Learn

Four strands of long-form explanation, written for a reader who wants to understand Bitcoin's record rather than be told what to do with it. Each strand takes a question that people actually ask — what steady buying produces, how the returns compound, whether there is a cycle, how bad the drawdowns get — and answers it from the data on this site, in full sentences, with the reasoning shown.

These pages are written to be read straight through, not skimmed for a number. They assume no prior knowledge of Bitcoin or of finance, and they define their terms as they go — the glossary collects every one of them in a single place. Where a calculation would genuinely help you reach your own conclusion, the writing points to a tool that does that work properly rather than embedding a calculator here.

None of it is a forecast. The strands describe what has happened and measure it carefully; what you conclude from that is yours to decide.

Accumulation

What does steady buying actually produce?

Dollar-cost averaging is the strategy most often recommended to people who do not want to think about timing, and it is also the one most often described in slogans rather than numbers. This strand works through what a fixed monthly purchase would have produced over Bitcoin's real history, including the stretches where it would have felt like a mistake for more than a year. It compares steady accumulation against a single lump sum over the same windows, and it is honest about the fact that the answer depends heavily on when you started.

Start with Dollar-Cost Averaging

Returns

How has Bitcoin actually performed, year by year?

The return record is the part of Bitcoin's history most often quoted and least often read in full. This strand sets out the calendar-year figures from 2010 onward, with the open, high, low and close for each year, and then looks at what those years compound to over longer horizons. It is careful to distinguish a total return from a compound annual growth rate, because the two tell different stories about the same period, and it shows why a single average figure hides almost everything interesting about the path taken.

Start with Returns

Cycles & Supply

Is there a rhythm to Bitcoin's market, and where does it come from?

Bitcoin's price history is usually told as a sequence of four-year cycles, each anchored to a halving of the block subsidy. This strand examines that claim rather than repeating it. It sets out the issuance schedule and every halving to date, then looks at the expansion and contraction phases the market has actually produced. The conclusion is deliberately measured: the halving is a real and predictable change in supply, and the cycles are a real pattern in the data, but the four-year rhythm is descriptive rather than mechanical, and the episodes differ enough in length and depth that treating them as a schedule is a mistake.

Start with Cycles

Risk & Volatility

How much can this fall, and how long does recovery take?

The most important fact about Bitcoin for anyone sizing a position is not its return but its volatility. This strand measures the drawdowns — every peak-to-trough decline of consequence, how deep it went, and how long the price took to regain its previous peak. It compares Bitcoin's realised volatility with its own history and with large equity indices, and it explains why a high average return and a severe drawdown are not in tension: they are the same fact viewed from two directions. It is the strand to read first if you are trying to understand what holding this asset has actually felt like.

Start with Risk & Volatility

Reference, once you have the context

The strands above explain the ideas. These pages hold the underlying record, for when you want to check a figure or follow a source.

The measures, explained one at a time

Each of these pages takes a single measure — a drawdown, a compound growth rate, a volatility figure, a cost basis — and works through what it means, how it is calculated from the published record, and the specific ways it is misread. They are the companion reading to the strands above.