It is added to the print version and is available on-line from Reuters, to coincide with the publication of the physical book, which is now in stores. Excerpt:
The original publication of The Great Stagnation was in eBook form only, and I meant for that to reflect an argument of the book itself: The contemporary world has plenty of innovations, but most of them do not benefit the average household. After all, the average household does not own an eReader. It’s not even clear whether the average household buys and reads books. So I viewed the exclusive electronic publication, somewhat impishly, as an act of self-reference to the underlying problem itself. It was therefore a bit amusing when some critics suggested that the new medium of the eBook itself refuted the book’s stagnation theory—quite the contrary.