Inefficient on an individual level, but the adaptability and robustness is more on a species level. It's probably pretty efficient in that regard. A high risk,

Inefficient on an individual level, but the adaptability and robustness is more on a species level. It's probably pretty efficient in that regard. A high risk, high reward strategy that works out well for humans that survive and end up with large brains, but terrible for certain individuals for the reasons previously outlined.