The first rise was kinda made out of nothing, while now there is big money crisis around the world, that will not get solved that soon. There will be a correction, that's mandatory for me, since the market got crazy and we're now steaming toward 1300$/BTC I think. This correction won't put us back to 400$, except in the case a sole person is behind this huge rally and he cash out all its profits instantly, but this seems very unprobable, but more something like 800-900$.