When a scientist creates an important experiment, it does not transpire like an innovation in art.  Other scientists test the results by recreating the original experiment but serious artists want to avoid a recent innovation because they see it as copying, giving up their autonomy as innovators.  An artist might quit looking at Artforum and other “serious” art magazines because he might not want to to get into the habit of anticipating whatever is thought to be the next innovation.  He can occasionally look at Art in America because an artist’s work would have become passé by the time it showed up there.