This concluding chapter outlines the "coming of age" of true cost accounting (TCA) methodologies, highlighting their growing contribution to changing political debates and public mindsets, "beyond the dollar values that one can assign to individual TCA assessments." Looking back at the evidence marshalled from the diverse case studies and analyses presented in the preceding chapters, the authors discuss seven key insights that emerge from this body of work as a whole, and provide suggestions for harnessing the power of TCA to positively influence the sustainability of global food systems.