This article is heavily biased, makes ridiculously exaggerated claims, and bends statistics to its will. The computer boom came about because of capital gains tax cuts, huh? What a joke.
I suspect capital gains cuts did help. Founders are influenced by colleagues who've done startups, and what they see is the after-tax returns. And certainly big investors are influenced by tax rates on each class of investment.
Cuban talks about this point here:
http://blogmaverick.com/2008/10/23/the-cure-to-our-economic-...