I note that on this page ("Some Closing Thoughts", Transition Handbook 2nd Edition, by Rob Hopkins, that one of the first bullet points reads as follows:

"Increased income stopped making us any happier sometime around 19616"

Granted, we might be looking almost 20,000 years into the future, but this date seems to be wildly off the mark. Rob or other contributors, could you please supply the correct date? Is it 1966, 1961, or some other construct? Thanks!