Isn't that assuming that production remains as energy inefficient over time as it used to be? If production over the time period became more efficient by X% tha

Isn't that assuming that production remains as energy inefficient over time as it used to be? If production over the time period became more efficient by X% than that X% generates economic growth that is not visible in energy production. Given that energy/GDP has been steadily decreasing, both in the US and worldwide, this indicates that efficiency of production definitely needs to be taken into account. (eg https://www.eia.gov/todayinenergy/detail.php?id=10491 https://www.eia.gov/todayinenergy/detail.php?id=10491)