The significant capital expenditure in AI infrastructure, including NVIDIA's potential deal with OpenAI for 5 million GPUs, suggests a massive, ongoing technology buildout rather than a bubble. With major players like Meta planning to spend $600 billion by 2028 and strong user growth in AI platforms like ChatGPT and Gemini, the sector is poised for substantial growth. Investors should consider the long-term implications of this AI revolution, as skepticism creates a "wall of worry" that could present buying opportunities.