This animated video crammed a huge amount of basic economic principles and terms into 30 minutes. It was aimed at about at the ninth-grade level, and would be ideal to show in the first week of a high school economics class. It certainly did not have time to talk about the Vietnam war, theories about the (still-disputed) causes of the recent meltdown, or other specifics.
As to the credibility of its data and principles, I found nothing major to criticize. The author, Ray Dalio has, over three decades, risen to be among the top dozen or so analysts of our economy and business cycles. He is highly respected among his peers, including those who disagree with him. He has grown fabulously wealthy as a wealth manager and advisor and certainly didn’t make this video for the money.
So, davejl, hang in there and don’t give up on Piggington. I remember your prescient comments and generous advice from long ago, and I have missed them.