Corrections

When we get something wrong, we fix it on the page, add a note saying what changed and when, and list it here. We do not edit silently. On YouTube we pin a comment and update the description; if an error changes a conclusion, we re-cut the film.

Log

No corrections so far.

Report an error

Tell us the page, the sentence, and the document you think shows it is wrong. Every report gets checked and answered. (A contact address goes live with the site.)