[naasking]

Invoking evolutionary biology is not the strong point you seem to think it is. Humans have plenty of characteristics and behaviours that are not present in other mammals, even characteristics that seem to be shared among all other mammals. Our shared heritage with cats didn't lead to our sophisticated language or take us to the moon.

Furthermore, if letting babies cry it out were truly as atrocious a practice as you seem to imply, the signal in the data would be so strong it would be impossible to ignore. The fact that we don't see such an indisputable signal should make you question your assumptions.

> ...that those farts have been causing pain in his abdomen or scrotum. Its amazing how it did not occur to you and instead you let the kid to just 'go through' it.

You seem to be implying that this was somehow wrong. Human newborns need to experience a range of sensations and discomfort to learn how to distinguish what counts as actual pain from mere discomfort. This still happens even into adulthood. Exercise is borderline painful when you're out of shape and then can become pleasurable as your fitness improves. Your brain is constantly adapting and recalibrating.

[unity1001]

> Invoking evolutionary biology is not the strong point you seem to think it is. Humans have plenty of characteristics and behaviours that are not present in other mammals

Yes, but co-sleeping, rearing children, co-habitation, touching, grooming, infants depending on their parents are present in all mammal species. More sophisticated and derived behaviors may not be. But these, are. And the repression of some of these in modern humans causes considerable psychological distress and anxiety.

[naasking]

> And the repression of some of these in modern humans causes considerable psychological distress and anxiety.

Literally pure conjecture, as there's no conclusive evidence of this claim, which is the whole point of this article.

Furthermore, the only change we're discussing is eliminating a specific type of co-sleeping. All of the other behaviours common to all mammals remain the same. The odds of this one change being significantly damaging are small, and considering we see no strong signal in the data we do have, I don't see this claim standing the test of time.