Jamie Dimon, CEO and chairman of JPMorgan Chase, sounded alarm bells about the dangers to our financial markets. He offered these reflections at the bank’s annual investor day confab in New York, illustrating the strains being faced by the top bank in the United States by assets.

J PMorgan Chase’s CEO Jamie Dimon has long been one of Bitcoin’s most vicious skeptics. In 2017, he said he would fire any employee who traded Bitcoin for being “stupid,” and called it a “fraud.” Last year, he called the cryptocurrency a “pet rock.”