The Butterfly Effect principle simply states that, given enough time, whatever event, no matter how small, can and will have tremendous reverberations into the future. And when talking about past disasters, natural or otherwise, we always have to keep in mind that, even though devastating, they are part of what brought us here in the first place. Without them the world and everything in it would have taken a totally different turn, ending up completely different than it is today. The further back in time any particular event takes place, the more indirect influence it has on the present and future, altering them beyond recognition.