As some of you may have seen, VQN rightly spotted that I failed to cite Wikipedia in some passages in Free. This is entirely my own screwup, and will be corrected in the ebook and digital forms before publication (and in the notes, which will be posted online at the same time the hardcover is released), but I did want to explain a bit more how it happened and what we’re doing about it.

First, as readers of my writings know, I’m a supporter of using Wikipedia as a source (not the only one, of c