Nvidia fails to impress at California technology conference
Shares drift lower after keynote speechCEO unable to stem tide of sellingNew products shipping next quarterDespite promising devotees at a packed hockey stadium in San Jose that Nvidia's (NVDA:NASDAQ) AI chips would soon be powering self-driving cars and futuristic robots, chief executive Jensen Huang seems to have lost his touch.Huang's keynote address at the firm's second...