 More generally, if the features of a theory that result in an infinite regress also result in some theoretical vice that we know to be objectionable independently of whether or not there is a regress, then we have a reason to reject that theory that doesn’t depend on the theory leading to regress. Sometimes, the theoretical vice in question will be a global one: a feature that is a reason to reject any theory that has it. Yielding a contradiction is, relatively  uncontroversially[3],  such a vice. Other times, the feature in question might be a local vice: a feature that might be an unobjectionable feature of certain theories, but a reason to reject a particular theory \(T\) because of the particular theoretical ambitions of \(T\) or as a result of other things we know about \(T\)’s subject matter.