I became a little alarmed at the number of my readers who took the meme more positively as a theory of human culture in its own right - either to criticize it (unfairly, given my original modest intention) or to carry it far beyond the limits of what I then thought justified. This was why I may have seemed to backtrack.
A Devil's Chaplain: Selected Writings (ed. Hachette UK, 2010) - ISBN: 9780297865421