Real estate mogul Grant Cardone warns Saylor’s Bitcoin treasury mania is over [https://www.thestreet.com/.image/t_share/MjE3Nzk1MDQ0OTQ4NTg0MDM4/gettyimages-2206134093.jpg] Real estate mogul Grant Cardone warns Saylor’s Bitcoin treasury mania is over The real estate investor warned that companies copying Michael Saylor’s Bitcoin treasury model risk collapse without cash flow and core operations. [https://www.thestreet.com/crypto/markets/grant-cardone-bitcoin-treasury-mania-michael-saylor]