Support the research
Everything here is free. There are no paywalls, no member-only pages, and no plans to add them. The book, the tools, the corrections register and the failure atlas are open to anyone, permanently.
That is a choice, and it has a cost. This work is unfunded. If it has been useful to you — if the book saved you an afternoon, if the test kit found something in your data, if the failure atlas named a problem you could not articulate — that is what the support links are for.
What the money goes to
| Use | Why it matters |
|---|---|
| Public dataset access and storage | Reanalysis is the cheapest real research there is, and it still needs somewhere to run |
| Instrument time, when a question needs it | Some questions cannot be answered from an archive |
| Time to finish the book and the tools | The work is done in gaps between paid work; support buys the gaps |
| Keeping everything free | No paywall is a promise, and promises have a cost |
Other ways to help, that cost nothing
- Use the tools and tell me what broke. A failing case is worth more than a donation.
- Send a correction. Every one is recorded in the register, including the ones that damage my own claims.
- Share the book. It is CC BY 4.0 — copy it, host it, print it, hand it to a student.
- Cite the work if you use it. A citation is worth more than its cash value.
If the free work stops being possible, the first thing to go will not be the paywall — it will be the next book. Support buys unfinished ideas the time to become finished ones.
No recurring billing, no account, no tracking. These are direct links to three payment services; nothing is stored on this site.