That sounds suspiciously like the claim that communism was never implemented properly.
Communism can never be implemented “properly” because it goes against human nature...Supply-Side acknowledges human nature and incorporates it into it.
Wow, seriously? “like communism?” I smell a troll. At any rate, in the 1980s, the Reagan cuts MORE than paid for themselves. Revenue went up 40% (see my book, “American Entrepreneur”). But spending increased by 100%. If we just held spending constant in 1984 terms, the tax cuts not only would have paid for themselves but SOME additional spending as well.