IIRC Andrej Karpathy in a recent talk made a point that reading a book isn't like memorizing the book, it's more like prompting the brain with the book.

So maybe this concept of being ready to go at birth isn't about the animals ability to start doing things but just a way of upbringing regardless of how ready the animal is to function. Maybe pigs just start prompting early. AFAIK human babies can swim right out of the womb. In other words, maybe the distinction between precocial and non-precocial(I don't know if there's a word for that) animals isn't that clear?

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phi-go 12 hours ago | parent [-]

I don't think babies can swim but they know not to try and breathe in water. Which is probably what you meant.

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mrtksn 12 hours ago | parent [-]

I think it's called "diving reflex", not very sure about it all but AFAIK babies can learn to swim properly quite early which makes me think that humans too come with a lot of "ready to go" features but maybe need some prompting to surface

	▲	ghaff 10 hours ago \| parent [-]
		Kids (and even adults) definitely don't know how to swim off the bat though I have no doubt they could be taught earlier than many are. There's a reason some universities have a requirement to take swimming physical education absent a demonstrate ability to swim.