Firstly, the human brain is not vastly superior. There are already tasks such that a reasonably competent developer can build and train a deep learning model that beats human perception on commodity hardware with open source software.

Secondly, the number of jobs requiring thinking in an ill-defined framework these days is shrinking rapidly.

This is not specifically caused by machine learning, but rather by the desire for predictable timelines / cost savings / metrics gathering. But it has set the stage for AI automation.

Take law and health care, for example:

* Law firms are consolidating, and lawyers can now spend their entire career working on one small, specialized aspect of a field.

* Primary care physicians barely are allotted just enough time to refer you to a specialist. The specialist has just enough time to order tests.