Technology stocks are sliding worldwide after leaders of the artificial-intelligence industry warned a slowdown is needed for safety, while another jump in oil prices is pressuring financial markets.The S&P 500 fell 0.8% in the early going Monday and was on track for its fifth loss in six days. The Nasdaq composite, which has many more tech stocks, tumbled 1.2%. The Dow Jones Industrial Average slipped 130 points.Nvidia, whose chips are helping to train AI models, sank 3.8% and was the heaviest weight on the market.The price of Brent crude jumped 3.8% to $108.74 a barrel.