Exhausted in example sentence
Northwestern University economist Robert J. Gordon maintains that all of the true “game-changing” innovations that have fueled past economic growth – electric power, flight, modern sanitation, and so forth – have already been exhausted, and that we should not expect growth to continue indefinitely.
More example sentences with word exhausted
And the Canadian Minister of the Interior wrote this at the time: "Thousands of pack horses lie dead along the way, sometimes in bunches under the cliffs, with pack saddles and packs where they've fallen from the rock above, sometimes in tangled masses, filling the mud holes and furnishing the only footing for our poor pack animals on the march, often, I regret to say, exhausted, but still alive, a fact we were unaware of, until after the miserable wretches turned beneath the hooves of our cavalcade. 
