马斯克画了个天大的饼，吐槽核聚变愚蠢至极

Core Viewpoint - Elon Musk publicly criticized controlled nuclear fusion, calling it "extremely foolish" and suggesting that investing in small fusion reactors is a waste of money [2]. Group 1: Critique of Controlled Nuclear Fusion - Musk argues that the sun serves as a massive, free nuclear fusion reactor, making the construction of small fusion reactors on Earth unnecessary [2]. - He previously stated that solar panels combined with battery storage could provide continuous energy, suggesting that a solar panel area of 100 miles by 100 miles could meet the entire electricity demand of the U.S. [2]. Group 2: Space-Based Data Centers - SpaceX plans to build data centers in space, upgrading Starlink V3 satellites to carry AI computing chips, with a goal to start in 2026 and create a global space computing network [4]. - The energy consumption for AI model training is projected to reach 1,200 terawatt-hours by 2035, which is nearly a quarter of the total U.S. electricity generation in 2024 [4]. - Musk's vision includes deploying 100 gigawatts of computing power annually via Starship, achieving self-sufficiency and potentially surplus capacity [5]. Group 3: Comparison with Nuclear Power - Major tech companies like Microsoft and Amazon are investing in nuclear power to secure energy needs, while Musk proposes relocating data centers to space [5]. - Space-based solar power offers advantages over controlled nuclear fusion, such as continuous energy generation unaffected by weather or time of day [10]. - The cost of solar power has decreased by over 80% in the past decade, making it commercially viable without subsidies [10]. Group 4: Challenges of Controlled Nuclear Fusion - The ITER project for nuclear fusion has faced delays and has seen costs rise to €25 billion (approximately 206.9 billion RMB), with operational goals pushed back to 2034 [7]. - Achieving the necessary conditions for nuclear fusion, such as heating plasma to over 100 million degrees Celsius, presents significant technical challenges [8][9]. - Experts believe that commercial nuclear fusion power may still be at least 30 years away from realization [10].