Sam Altman’s AI Bubble Warning: Is the Tech Frenzy Nearing a Dangerous Peak?
Nvidia’s market cap hit $4 trillion on July 9, 2025, up 1,300% since late 2022. OpenAI’s valuation reached about $300 billion, with talk of a $500 billion secondary sale. Mira Murati’s AI startup raised $2 billion at a $12 billion valuation without a product. Sam Altman warned tech reporters of a bubble in the overheated AI sector.