You are hung up on the past that doesn't necessarily carry over into the future forever. That's what economics teaches us; that the variables change based on the fundamentals of supply and demand, government intervention, and how the business world treats its customers and workers. The world economy is forever connected, and when one country's economy is affected, all are affected in many different ways.
The new norm might be what we're experiencing now; the US economy seems to be the only economy that seems to maintain some growth in a world where the other big economies are suffering from a reduction in their GDP growth.
Based on that world view, we can't expect the US to continue growing beyond the performance of other economies of the world. When Germany and Japan suffers, the US suffers. That's Econ 101.
These graphs are from BLS. FYI, that's from the Bureau of Labor Statistics.
Where do you get your info from?
Prove me wrong.