Just as the code breaking has its wider relevance in the struggle for Spain, so his attempts to make his way up the promotion ladder speak volumes about British society.
Our economy doesn’t work as well or grow as fast when a few prosper at the expense of a growing middle class, and ladders for folks who want to get into the midle class.
The next step up the AI ladder is artificial general intelligence or strong AI; this is an intelligence that can, at last, think as well as we can; we're probably about 30 years away from this.