Shares of Nvidia (NASDAQ:NVDA) stock have come under fire in recent weeks and have shed about 20% during the past month. Can artificial intelligence (AI) applications actually generate material revenue? Will Nvidia continue to remain the leader in the semiconductor and GPU industry? Is its valuation warranted, given its earnings and growth profile? These are all questions that NVDA shareholders should ask themselves.A big negative factor sending shares lower currently is the widely reported three-month dela ...