After reading thru the thread a bit I think Whomp, you're being a bit naive if you expect a return to "normal", even pushing aside issues just as dependence on non-renewable resources, climate change, overpopulation, etc.
IIRC credit card spending has increased something like 1700% since 1990 while real incomes have increased something like 250% (sry, cannot find the article where I read this, feel free to look these stats up to correct them as I'm sure they're off somewhat), not to mention the mortgage crisis, student loans, etc. I suppose getting into debt & living beyond your means "stimulates" the economy but not in a sustainable way. It seems to be the steep mountain of "perpetual" growth is nearing it's summit. It is not a "normal" trend but an anomaly made possible by cheap energy & a fairly stable world (with the exceptions of WWI, II & various skirmishes since, none of which since WWII took place on 1st world soil AFAIK).
People have been supersizing, bigger houses, bigger cars, bigger loans, etc. Is that "normal"?
IMO, the economy needs to become resilient with or without growth (and even with contraction).
I found this essay earlier today that I think is apt to post here. It was written 17 years ago but applies well to today's situation, IMO.
http://www.pcdf.org/1992/kinsl392.htm