Markets slid Monday. September 14 was down. AI stocks fell. Tech leaders urged slowing reckless development. Chip and memory stocks also declined. A Black Swan investor sided with Michael Burry. He said euphoria would come before a collapse.

Bitcoin came under pressure. An analyst said a S&P 500 pullback might send Bitcoin to $10,000. Another investor called Bitcoin a one-dimensional asset. He said its collapse would be deeply damaging. Transat A.T. shares dropped 5.97 percent. Fuel costs were the main problem. Warren Buffett urged caution when others are greedy.