External controls of evolution (political, social, environmental) would require unlimited intelligence and, therefore, unlimited energy: the scaffolding would not be linear but multidimensional with its own system of control, etc. Thus, external control would also need to be limited.

We have built a massive complex society that is highly dissipative, and society is increasingly becoming the ultimate sink of itself. Wastes can't be expelled quickly enough or dispersed to nothingness; instead, they are becoming stuctural features of our systems and the controls of systems. Our main control, the political system, grows toward chaos.

A smaller less complex civilization would truly be much quieter.  Stability, on the other hand, is out of reach for society in this kind of real world. Our reaching for more control is a different order of addiction with large unrealized harm.