下游的优势在于市场想象空间巨大，估值弹性高，一旦实现技术突破，有望获得垄断性收益。但风险远高于上下游：盈利周期极长，预计要到2030年才能实现现金流转正；技术路线失败率高，类似Meta元宇宙投入效果不佳的案例并不少见；且资本依赖性极强，一旦融资环境恶化，将直接冲击企业生存。
Median mean SSIM across all 1,341 pairs with data: 0.322. The typical confusables.txt entry is not visually confusable at all.
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Can world models touch grass?
The model railway company, which also sells toy planes and cars under the Airfix and Corgi brands, has sold the Scalextric business and intellectual property rights to Purbeck Capital Partners.