The prediction-control (PC) space offers a theoretical framework for the entrepreneurial method and shows how it can foster the development of a middle class of business, defined as ventures that grow and endure over time, but don’t necessarily grow very large in size. Analogous to the middle class in history fostered by the scientific method, the middle class of business is likely to provide spaces of non-churn and non-change requisite for the cocreation of robust communities and new ends worth achieving for human well-being. Such new ends are also likely to be crucial to tackling the problems of the 21st century and beyond.

中文翻译：

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中产阶级：作为企业家精神的因变量的耐力

预测控制（PC）空间为创业方法提供了理论框架，并展示了它如何促进中产阶级企业的发展，中产阶级企业的定义是随着时间的流逝而增长和持久的企业，但不一定会在此过程中成长很大尺寸。类似于历史上由科学方法培育出来的中产阶级，商业中产阶级很可能提供不流失和不变的空间，以共同创造强大的社区和值得为人类福祉实现的新目标。这种新的目标也可能对解决 21 世纪及以后的问题至关重要。