The updated SPX 1929 analog would look something like this. Currently it's on about a 2x timescale to 1929 if the October decline was the first of three declines.
It's folks like you that constantly spread FEAR and Flash crash this or that that the BULLS have been so arrogant. The FED understands this fear and squeeze on those. Look at QQQ. Last week DID NOT HAPPEN!!!! 10/24/14