The match results from the combination of the "prefix Co " in this case means repetition, " Again " or simply again, with the word " impact " which makes us refer to the " decay " that gives us the notion of that coincidence is used to make mention of events that happen two or more times in a row, or that the entities involved are closely familiar with continuous ideas in an unforeseen period of time. Coincidence is like chance, an unexpected event with a certain suspicion which recalls one already carried out or in common with anyone.
Coincidence is a social term, applied in a plural way within social groups which are in constant movement and interaction. This makes the coincidences part of the day to day. The context in which the question of a coincidence is applied belongs to a characteristic population of the citizen, it is a coincidence to find someone in the queue to enter the bank twice. But it is also a coincidence that it happens at least once. There is no completely clear definition, which is capable of emulating a cause that implies the need for a coincidence to happen, but it is clear that they happen without being avoided or planned.
A Deja Vu is nothing more than a brain reaction in which a certain event from the past is associated with one happening in the present, it gives a sudden and surprising feeling that what is being lived has already happened. Although this is part of the study of parapsychology, which is a pseudoscience which is not completely established within the real, it is considered a mere coincidence of events, since the relationship that the mind maintains with each other is relative. The question is funny, fun to mention and in some cases uncomfortable, when something that is not expected turns out, the mind reacts with surprise, trying to assimilate the idea that a coincidence is present in everyday life. Synonymous with chance, although it always has a certain difference on the part of the etymology, the human being in common will always associate both terms.