An average describes repeated outcomes
Solo mining concentrates income into rare successes for small contributors. An expected time to find a block is a statistical average under selected assumptions. It is not a countdown that obliges the network to award a block when the timer ends.
A simple model may treat discoveries as a Poisson process with a constant rate. Real hashrate, difficulty, uptime, and accepted-block conditions can change. Even a well-specified model cannot remove variance or transform a possibility into guaranteed cash flow.
Step-by-step
- State assumptions. Record accepted hashrate, network estimate, operating availability, and the time horizon. Explain whether a constant-rate model is being used.
- Separate expectation and probability. An average wait and the probability of at least one discovery by a date answer different questions. Avoid displaying either without its model.
- Budget independently. Ensure recurring expenses and reserves do not depend on a block arriving on schedule. Compare pooled alternatives and their own fees and risks.
Worked example
Illustrative example. Under an illustrative constant-rate Poisson model, one expected discovery over a period implies a probability of at least one discovery of 1 − exp(−1), approximately 63.2%, not 100%.
This is a mathematical illustration, not a live prediction for any machine. There is still a substantial chance of no discovery in that modeled period.
Common mistakes
- Calling an average wait a guaranteed payback period.
- Assuming an unsuccessful week makes the next week ‘due’.
- Leaving hardware and network changes out of a long-term model.
Questions and answers
Does a longer dry spell make the next hash luckier?
No. Past failures do not make an individual future hash preferentially successful. Evaluate independent attempts and changing conditions rather than treating mining as a progress bar.
Apply this to your setup
Keep the model, assumed discovery rate, observation horizon, and probability of no discovery together. Test whether the operation can meet bills in that no-discovery scenario. A model result should remain understandable if the rate changes; historical unsuccessful attempts are not credit toward a guaranteed future block.
Sources and next steps
Compare solo and pool mining and network share.
How this guide was prepared: AI-generated drafting with the linked technical references and illustrative calculations. It does not report first-hand equipment tests or a named specialist review.