The artificial intelligence (AI) revolution is reshaping technology, and this single fund owns the companies powering it all for just 0.09% in fees.Two months ago, I called the Vanguard Information Technology ETF (VGT -1.03%) the best Vanguard fund to buy. Since then, the artificial intelligence (AI) boom has only accelerated -- and this fund has captured nearly every dollar of value created.Through September 1, the fund has returned 12.1% year to date, beating the S&P 500's 9.8% return. That outperformance ...