This seems to be circular. Wouldn’t anyone need some reading “taste” in the first place to decide to read more. And if they already have it, why would they ne

This seems to be circular. Wouldn’t anyone need some reading “taste” in the first place to decide to read more. And if they already have it, why would they need to read it? If it’s all relative there can be no globally valid, or fixed, reference points by definition.