The Concave Versus Convex Disposition

i'm like a sucker for classification systems that point out some, you know, underappreciated axis along which people vary. And even more so if that axis is about differences in people's thinking style or world view. Could you just briefly explain what is the concave versus convex distinction? Sure. So a distinction s basically that if there is someof trade off between option a and option b,. where option a has some advantages, and a option b has some other advantages.