Robert Kiyosaki, author of 'Rich Dad Poor Dad,' has raised alarms over a potential market crash following Warren Buffett's recent endorsement of gold and silver. Kiyosaki noted on X that Buffett's shift from previously dismissing these metals to now promoting them is a warning sign of collapsing markets and rising financial instability. He continues to advocate for investments in gold, silver, Bitcoin, and Ethereum as protective measures against economic uncertainty.