I cannot sleep more than 3 hours at night, and 1 hour in day. So if it continues like that, and if I keep fit, I think I shall have ample time to work writing books: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.