yes for sure, during 1987 the MA's were still sloping upward slightly, not as strong as they are now but they were sloping up, then of course price crashed through the 200 day MA and you had the famous 1987 crash.  Is it possible something that could occur now?  sure anything possible.  Also remember that time was different in that once that 1987 crash was over so was the sell off.  Instead of a bear market that would normally take 1 - 1.5 years, it was over instantly, the market bottomed on the crash. The 1987 high was late Aug the low was mid Oct, only 2 months, is that really a bear market in only 2 months? Or just a very strong correction in the ongoing bull market of the 1980's and 1990's secular bull. To me I bear markets last months at least a year and more, to me was a very strong but very painful fast sharp correction

again anything is possible guys, the 1987 crash is something that could happen as it had a similar MA configuration as we do now.  otherwise my analysis points out that we are  not at the point where we would sell off in the traditional bear market, that would be 4 - 6 months later IF the highs are in place.  This is not Oct 2000, this is not 2008.  If not, then this is one large 4th wave correction in the bull market

again guys - you really should look at a 100 year chart, go back and look at each strong pullback, bear market and strong pullbacks in the bull market, only then can you have a feel for things, and think with a level head.  Too many people lose focus and get emotional right now now with all the chatter out there.  DO THE WORK, it will give you a clearer perspective than reading twitter and cncb and zero hedge articles

so to be the 1987 case is the only possibility I see (though I think the odds are extremely low) which obviously would be a very bad one, but I dont' see see us starting the hard down leg of a long bear market from here because of all the evidence I posted, I could only see that say months from now after the indexes rallied up to form lower highs