In market economics and evolution alike, when we posit that an organism/industry became more effective through some kind of change, we also require an explanati

In market economics and evolution alike, when we posit that an organism/industry became more effective through some kind of change, we also require an explanation for "And why hadn't it already done this? What was stopping it from doing so earlier, and what was the mechanism that this constraint was removed?" Genuinely unexploited niches and entirely novel strategies exist, but they are extraordinarily rare. Do other primates show strong bicameral connectivity in terms of physical brain structures?