The problem with "ANY" type of predictions, is that by simple quantum string theories, the act of observation, dictates the change in the outcome, hence the "predictions" is made moot..

And simple application of "Ockham's Razor", also dictates that "NOTHING" is 100%, as the point at which an observation or action tries reaching 100%, is when it fails in continuation due to the infinite curvature effect..

Basically, the fact that someone attempts to predict anything, is a guarantee it will not happen the way predicted...