Stoffregen & Bardy's target article is based on the assumption that our sen
ses' ultimate purpose is to provide us with perfect information about the o
utside world. We argue that it is often more important that information be
available quickly than that it be perfect. Consequently our nervous system
processes different aspects of information about our surrounding as separat
ely as possible. The separation is not between the senses, but between sepa
rate aspects of our surrounding. This results in inconsistencies between ju
dgments: sometimes because different frames of reference are used. Such inc
onsistencies are fundamental to the way the information is picked up, howev
er, and hence cannot be avoided with clearer instructions to the subjects.