While billionaires were busy dumping shares of artificial intelligence (AI) goliath Nvidia during the June-ended quarter, seven billionaire money managers were scooping up another leading AI stock.Over the last 30 years, no shortage of next-big-thing investment trends have graced Wall Street. Since the advent of the internet in the mid-1990s, no innovation, technology, or trend has come close to having the impact on corporate growth rates as the internet... until now.According to the analysts at PwC, the ar ...