I say it's all in the 'If'
Nick Rowe attempts to explain OLG models again: "...if you use debt to finance transfers to the old in generation A [, t]here is no way you can do it without making some future generation have lower lifetime utility." I spent some time with an OLG model, and after a while I understood the model. At the very least, I could clearly see how wealth was being transferred from the young to the old. And from the moment I grasped the model, it seemed to me the key was the transfer payments, not the debt. So yes, if you transfer wealth from the young to the old, you transfer wealth from the young to the old! And that happens whether you transfer it using debt or taxes.