Errata & corrections

Published numbers are never silently revised. When an error is found — by us, a reader, or a vendor — the correction is recorded here with a date, the affected edition is annotated, and the corrected data is republished alongside the original. Corrections also go out on the RSS feed and the newsletter.

What counts as an error: harness defects, grading defects, infrastructure failures counted as model failures, pricing transcription mistakes. What doesn't: a model performing differently in a later edition (that's a new measurement), or disagreement with the methodology (that's a methodology challenge — also welcome).

No corrections to date. The first one will be listed here — the day we publish it is the day you should trust us more, not less.