Why peak oil predictions haven’t come true

It seems to me, though, that a third outcome is not only possible, but is what is actually happening.

3. Diminishing returns from oil limits are already beginning to hit, but the impacts and the expected shape of the down slope are quite different from those forecast by most Peak Oilers.

Gail Tverberg from, http://ourfiniteworld.com/2014/10/06/wsj-gets-it-wrong-on-why-peak-oil-predictions-havent-come-true/