Robert Kiyosaki is warning of a potential collapse of the US dollar, with some reports suggesting this could be triggered by a move by Iran or a looming market crash. He is urging investors to buy gold, bitcoin, and ethereum as a way to protect themselves, with some reports also mentioning silver as a potential safe haven. The exact nature and timing of the predicted crisis are unclear, but Kiyosaki is reportedly advising investors to take precautions to avoid significant financial losses.