We have tons of simplified examples of idealized theories with fixed points. The community at large has worked a lot on empty space-time, just pure gravity. Actually, most of us work in an even more simplified setting where there are only quantum fluctuations of space, rather than fluctuations of both space and time. But nevertheless, people have tested this in literally hundreds of papers and found very robustly that this fixed point where things stop changing exists.
第一节 强化主体功能区战略实施
，这一点在safew中也有详细论述
在多品类家电的竞争格局中，海尔与美的拥有全矩阵的硬件产品线与庞大的底层物联网平台，它们采取的是“高举高打、全屋包围局部”的稳健渗透策略。
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