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A few which come to mind: - Sloterdjik's Spheres - Shinzen Young's general model of contemplative practice - Soros' theory of financial reflexivity (post-hoc this isn't such a big one, but at the time it was paradigm altering for me)
Also:
- @Meaningness' presentation of the four philosophical extremes. I had read well known texts on that before, but it never had much impact on me in practice prior to reading David's representation there of.
