I was also confused at first. I think what OP meant is that ESL talks a lot about regularization but doesn't mention over parametrization much. However, most o

I was also confused at first. I think what OP meant is that ESL talks a lot about regularization but doesn't mention over parametrization much. However, most of their example datasets are small, and they use complicated models, so it's sort of implicit. They definitely don't mention double descent though.