"...it has coevolved with exquisite feedback controls, and enabling regulatory and operational mechanisms. "
Well said!
In modern machinery and computer code, there are many types of feedback used in order to control a process, handle errors, unexpected conditions and etc.
Yet, a single cell makes more use of different kinds of feedback mechanisms than the most complex machines or even massive communication networks.
The evolution of single cells and conglomerates of cells that clustered together went on for over a billion years prior to the branching out that led to humans. When sufficient resources are available, single cells can reproduce many times a day. This rapid reproduction and intense competition for resources allowed the evolution of fantastically complex and hugely adaptable cells. Those cells and that evolutionary framework is the basis for complex life today. Had the cell not evolved into such a "fit" package as it did, evolution of more complex life forms could not happen.