Tim Jackson obviously looks for the first option, but he did not conceal the dangers, it is more honest than some. However the title "The transition to a sustainable economy" is misleading since Tim Jackson rightly acknowledges that there is no macroeconomic model of the sustainable economy. How to pass an unknown model? But economists do? Tim Jackson is surprised by this gap, but perhaps it is the confirmation that this sustainable economy is still a myth that no model can validate the feasibility.
The book will describe credible "transition to a sustainable economy" is still writing, the content of it is interesting for other aspects.