From my scientifically and mathematically literate perspective, the first twelve chapters were very exhaustive (read: boring) groundwork for the philosophical musings of the last two. I would replace 'cybernetic' with 'linguistic' as far as tone goes, though he does presage the obsolescence of white collar work as machines continue to better understand and use human language.
He deals very deftly and dismissively with the conflict between the structures of science and religion, perhaps a prematurely concluded argument given the date of publication and contemporary conflict. Like most other scientifically driven philosophy I've encountered, this work has a profoundly optimistic outlook at the continued evolution and sophistication of the creative processes of humanity.
Subtitled: "A cybernetic approach to evolution" Great introduction to several fundamental topics of natural science, like cybernetics, evolution, language and cognition, history and philosophy of science, and many many more.