"It is the greatest number of authors to have been involved in a collaborative novel. Or at least, to have owned up to their chapters."Of course, he must have meant in a published collaborative novel.
Why do I say this? Because the first volume of unblokt has at least 500 authors. Of course, some of these authors have written complete and utter drivel (for example: "asdf asdf asdf asdf "), while others have written sentences that I'm sure Yeats himself would have been proud of.
I would love to get the first 300-page volume written at unblokt published somewhere. Then O'Connor's statement would be decimated by a book with 30 times as many contributors. Not the most flowing prose, but certainly the most varied.
If you know (or are) a publisher interested in being part of this truly monumental human achievement (ha ha), please get in touch.