With stocks selling off today, the natural question might be "is this it? Are we about to get slammed?" I can completely appreciate that question, particularly given all the uncertainty the market seems to be digesting of late. It is for this very reason however, that I outline levels ahead of time, so that when the volatility strikes, as it reliably does, we can immediately weigh the discomfort in the context of levels that were predetermined to matter before the weakness started, presumably in a more even-keeled state of mind.