Beware of geeks bearing formulas.
In the 20th century, the United States endured two world wars and other traumatic and expensive military conflicts; the Depression; a dozen or so recessions and financial panics; oil shocks; a flu epidemic; and the resignation of a disgraced president. Yet the Dow rose from 66 to 11,497.
If anything, taxes for the lower and middle class and maybe even the upper middle class should even probably be cut further. But I think that people at the high end - people like myself - should be paying a lot more in taxes. We have it better than we've ever had it.
When a management with a reputation for brilliance tackles a business with a reputation for bad economics, it is the reputation of the business that remains intact.