Keep things in perspective, folks:
Absolutely.
Viewed from distance, these are just oscillations or fluctuations.
The action on a market is not formed by an "invisible hand" (which is a myth), rather it is formed by conflicting intentions. These are never steady or even conditioned, plus there are self-accelerating mechanisms on the small scale, like leverage and mass psychology.
The quote given earlier in this thread gives a mark of 10%, and an correction must have an enduring effect, at least on a short time scale.
Not counting the one epic down move in 2011, ever since we had a an overall up trend, interrupted by a series of corrections, roughly of the order of magnitude about 25%.
Can we expect such a thing again?
My answer is: as long as the underlying pattern of market forces remains basically the same, we can expect a similar visible shape.
