Thanks for the great article Tom. I resonate strongly with your ideas and have actually written my PhD about the need of an inner transformation for outer transformation and how the two might relate to each other. Yet, the "inner" can have so many connotations: mindsets, values, worldviews... To me, the notion of worldviews - which includes our comprehension of the nature of the universe and our metaphysical assumptions - is key in the context of sustainability. If you are ever curious about diving into this deeper and would like some literature suggestions, let me know.