Sabine is either straw manning or didn't read the actual paper, because the whole point of Max's paper is that there's no substrate or quintessence beyond just

Sabine is either straw manning or didn't read the actual paper, because the whole point of Max's paper is that there's no substrate or quintessence beyond just the mathematical properties. If her counter is that "No there isn't just mathematical properties", then what is there? What is a quark if not its mathematical properties?