That model seems incomplete given the lack of efficiency as a variable. Home energy usage went down in spite of growth in electronics and power mainly due to be

That model seems incomplete given the lack of efficiency as a variable. Home energy usage went down in spite of growth in electronics and power mainly due to better lighting efficiency alone. While it can help it doesn't drive all. One common mistake in economic growth modeling is thinking only in terms of bulk. We are far richer than bronze age herdsmen but very few of us have tens of thousands of livestock.