Wikipedia:Plus-one

Wikipedia is not a crystal ball. By definition, it is impossible for us to know what will happen in the future. We cannot report on what has yet to happen. What we can do is keep a record of what other people think is going to happen. This becomes very much easier as events approach us, and more and more reliable sources start reporting the information, which we can then record. Thus, it makes sense to restrict this to perhaps the current event, plus one.