 Feinberg (1980, 221–51) and Thomson (1990, 82–104) object to this specificationist view of rights. First, fully specified rights would be unknowable: no one could set out all of the qualifications that define even the simplest right. Second, rights so understood lose their explanatory force: for the specificationist rights can only be the conclusions, not the premises, of arguments concerning which side in any dispute should prevail. Third, specificationists cannot explain the “moral residue” of a “defeated” right. For instance, consider a case in which your property right in the pie cooling on your window sill conflicts with John’s right to do what he must do to keep from starving. John’s right may prevail in this case: John may have a right to eat your pie. Still, after John rightfully eats your pie he should apologize to you, and compensate you if he can.