Category Grouping in the UFO Community

This writing is based on the author experience in various UFO communities in Indonesia. The problem is the UFO topic is a very broad topic and can involve various fields including Science, Technology, History, Myth, Religion and so on. This makes the UFO community very heterogeneous with various kinds of personal opinions in it. These various opinions can turn a discussion into an unhealthy debate, and this has indeed happened several times. The author tries to make several categories that might divide or classify a UFO community. This division or grouping is based on the author's observations and the level of strangeness of a thought in the UFO community.