Robert Kiyosaki, author of 'Rich Dad Poor Dad', recommends buying a Bitcoin ETF, citing a potential economic depression and the likelihood of the Treasury and Fed printing more money. He suggests investing in gold, silver, and Bitcoin, with a particular emphasis on the affordability of silver and the opportunity to invest in a Bitcoin ETF. Financial analysts note that several asset management companies, including BlackRock, WisdomTree, and Valkyrie, await SEC approval for a spot Bitcoin ETF.