Yes, that's true, although it's always irritated me slightly because it has a repetitive element, from one generation to the next, an element of "kicking the ca

Yes, that's true, although it's always irritated me slightly because it has a repetitive element, from one generation to the next, an element of "kicking the can down the road" or "passing the buck". Which is not to deny that it all generates knowledge and makes progress, but it (parenthood) generates a lot of churn, too.