OpenAI's Sam Altman sees AI bubble forming as industry spending surges

1. Sam Altman warns of an AI bubble, likening it to the dot-com crash. 2. Experts agree investment in AI is moving too fast, raising concerns. 3. OpenAI's revenue projected to hit $20 billion, but remains unprofitable. 4. Altman indicates uncertainty about AI progress and its future definitions. 5. OpenAI prepares a $6 billion stock sale, valuing the company at $500 billion.