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，更多细节参见夫子
Over almost 12 hours, the 98m-tall Space Launch System was carried vertically from the Vehicle Assembly Building on the 4-mile (6.5km) journey to the pad.
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这种规模的投资远超经济产出——这不是普通的预算问题，而是结构性回报难题。这就是AI基础设施的“投资悖论”：超大规模云服务商们陷入了典型的“囚徒困境”——没有人敢停止投资，因为担心失去竞争优势；但持续加码投资，又在不断摧毁股东价值。