His theory was that there are points on the curve where reducing tax rates increases revenue. That theory makes sense.

Let's say you have a 99% tax rate. Cut it to %98 and you've reduced revenue very little, but doubled after-tax profits. I bet the boost to the economy would more than make up the slightly over 1% drop in rate.

The current GOP dogma is that the effect always applies.

Homeopathic Taxation!