NVDA CEO Huang estimates 20 years before useful quantum computers. AMC CEO feels shareholder pain. Sportsbooks hit as too many NFL favorites win.

CEO Jensen Huang lit the entire quantum computing sector on fire last night after saying the technology won’t be “very useful” for at least 15 years and maybe as many as 30 years. He may as well have poured gasoline on the industry and thrown in a lit match.

Asian shares mostly rose Tuesday, deriving optimism from rising technology stocks on Wall Street, led by Nvidia. Japan's benchmark Nikkei 225 jumped 2.2% to 40,164.53. Australia's S&P/ASX 200 edged up 0.