 From an operationalist perspective equally troublesome as point-like quantities are global quantities, like total charge, total energy or total momentum of a field. They are unobservable since their measurement would have to take place in the whole universe. Accordingly, quantities which refer to infinitely extended regions of space-time should not appear among the observables of the theory, as they do in the standard formulation of QFT. In the discussion of such “parochial observables” below we will see that it is not so clear in the end whether this is really a good argument (see Ruetsche 2011 and Feintzeig 2018). In any case, however, it has been important in the formation of axiomatic reformulations of QFT.