Radio Galaxy Classification: #Tags, not Boxes
  After six decades of studying radio galaxies, we are now being delightfully
overwhelmed by their exponentially expanding numbers, and the complexity of
their structures. Similarly, the ways we classify radio galaxies have exploded,
often leading to conflicting terminology, ambiguous classifications, and
historical schemes that may or may not match with our current physical
understanding. After discussions with more than 100 radio astronomers over the
last several years, listening to their ideas and aspirations, I propose that we
reconceptualize the classification of radio galaxies. Instead of trying to put
them into "boxes", we should assign them #tags, a system that is easy to
understand and apply, flexible and evolving, and can accommodate conflicting
ideas about what is relevant and important. Here, I outline the basis of such a
#tag system; the rest is up to the community.
