简单来说，世界模型 = 让 AI 在脑子里“模拟整个世界”。它不是简单的“看图、生成视频”，而是让 AI 学会世界有什么物体、物体之间怎么互动、物理规则是什么、事情会怎么发展，然后在内部构建一个虚拟的、可推理的世界。
HS2 said in response: "Chief Executive Mark Wild has been clear that overall delivery of HS2 has been unacceptable and he's committed to ending the project's cycle of cost increases and delays."
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A microfluidics chip enables researchers to manipulate and study individual cells, without the use of agar at all. Credit: Brouzes E. et al. PNAS (2009).
In his simulations, it was extremely rare for someone to have their mutual first picks; but many people had those that were second or third picks. In this scenario a couple counts as happy if each is near the top of the other's list and neither can find someone they and that other person would both prefer more.