Nassim Taleb's recent calls for a market drop and why he's focused on the U.S. dollar, domestic debt, and S&P 500 concentration. What investors can learn from someone focused on tail-risk hedging.

"The Black Swan" author Nassim Taleb spoke to BI about tariffs, Elon Musk, dollar woes, and crypto. Taleb raised the prospect of a "debt crisis" fueled by America's runaway deficit spending.

Nassim Taleb's recent calls for a market drop and why he's focused on the U.S. dollar, domestic debt, and S&P 500 concentration. What investors can learn from someone focused on tail-risk hedging.

"The Black Swan" author Nassim Taleb says he's focused on hedging against a market collapse. He said the market is flashing parallels to prior crashes, noting that it is the most fragile in 20 years.

1 minute read Nassim Taleb, New York University professor and author, speaks during the Bloomberg via Getty Images Markets 50 Summit in New York, U.S., on Thursday, Sept. 15, 2011.