Dinosaurs did not give birth and bears don’t have a particularly big head to body ratio—the idea here is specifically that childbirth is hard and dangerous, not simply running around with a big head would be so.
As for the brain, I think having eyes close to mouth is useful to basically every animal, being able to hit food or enemies with the mouth accurately, and eyes came from brains.
There no reason why species on other plants who are intelligent have to give birth. Yes, humans do but to be a great filter it would have to be true more universally.
Precisely. I am trying to say that giving birth means intelligence has a downside, and that could have paradoxically lead to intelligence getting more widespread due to the downside meaning the need for more intense competition.
Dinosaurs did not give birth and bears don’t have a particularly big head to body ratio—the idea here is specifically that childbirth is hard and dangerous, not simply running around with a big head would be so.
As for the brain, I think having eyes close to mouth is useful to basically every animal, being able to hit food or enemies with the mouth accurately, and eyes came from brains.
There no reason why species on other plants who are intelligent have to give birth. Yes, humans do but to be a great filter it would have to be true more universally.
Precisely. I am trying to say that giving birth means intelligence has a downside, and that could have paradoxically lead to intelligence getting more widespread due to the downside meaning the need for more intense competition.