A few months back, I wrote on zero- and positive-sum thinking. Zero-sum thinkers struggle to imagine scenarios where one's "win" doesn't come at another's loss, or where paying attention to X doesn't mean neglecting Y. Positive-sum thinkers can hold multiple ideas in tension, and see mutual benefits more easily.

But the irony is that positive-summers need to account for zero-summers, too. We can't change all ways of perceiving. Still, the ideal is a world where even zero-summers are better off.