The CEO of IONQ claims NVIDIA GPUs, specifically the Blackwell chip, will be irrelevant by 2027 due to quantum computing advancements. This presents a high-risk, high-reward scenario: either IONQ could capture significant market share from NVIDIA, potentially growing its $20B market cap substantially, or the claim is an overstatement. Investors should monitor IONQ's progress and NVIDIA's response to quantum computing developments for potential long-term shifts in the AI hardware market.