This 20-minute primer from John Hussman was done in 2017 as the Trump tax cuts were promising to boost economic growth and make America great (er).
As Hussman and other math-lovers predicted, the policies were doomed from inception, and have suceeded in increasing government debt to further enrich capital owners at the expense of workers, productivity, innovation and social stability.
Similar trends have been unfolding in Canada over the past two decades. We need to understand why this is self-destructive as a whole and adopt new (old) policies that have reliably worked historically to redistribute resources and reboot opportunity: making companies and capital contribute fairly to taxes enables essential productive investment in education, job training, research and development. Grotesquely enriching a few at the price of everything else is truly dumb.
Economist John P. Hussman on the flawed logic behind the proposed 2017 tax bill, and what policymakers could do to encourage U.S. economic growth. Here is a direct video link.