Mark Cuban, a billionaire investor, has published a mock IPO risk-disclosure post on X, warning of potential tax increases for companies replacing human workers with AI technology. The post was in response to Elon Musk's statement that working will become optional in the future. The mock prospectus, which includes a robot utilization tax and a token usage tax, proposes tokenization on a Grok-created blockchain. It also criticizes the current Securities and Exchange Commission for being outdated.