By normal people? I think you are greatly overestimating people's knowledge of economic theory. Most probably only know of trickle down because it's mentioned in the news.

There was a recent article by NYT about the Chase Sapphire Reserve credit card. Look at the comment section, most don't know how to do cost benefit analysis. All they saw was a $450 annual fee. A good amount still talk about paying with cash only.

This doesn't mean I'm much better off. When you mentioned debt super cycles I have no idea what you mean. I'm only starting to get into economic theories. I'm 27, can be considered upper middle income, and given millennial income calculators in top 1% of earnings (not saying much since most people in the valley can get that, ~$70k income for that level). These theories does not have a perceived effect on people's day to day lives. So a lot don't know about them or don't care. Example, every few weeks I see an article in the front page about negotiating salary. This isn't a gauge of knowledge, but of interest. Everyone goes through negotiation situation, value is obvious, more people learn about it.