Another way to say that nothing is objective is to say that to have a truly objective view of something, one must have no view of it - there must be a complete isolation from the system. One can interact with the system in no manner at all. At that point, the system is completely unknown to the viewer and effectively does not exist to the viewer, even if the viewer has a theoretically untainted view of the system that is in no way affected by the viewer. So, a totally objective view of a system is totally non-existent.