Do dynamical reduction models imply that arithmetic does not apply to ordinary macroscopic objects

We analyse a recent paper in which an alleged devastating criticism of the so called GRW proposal to account for the objectification of the properties of macroscopic systems has been presented and we show that the author has not taken into account the precise implications of the GRW theory. This fac t makes his conclusions basically wrong. We also perform a survey of measur ement theory aimed to focus better on the physical and the conceptual aspec ts of the so-called macro-objectification problem.