Spotting the very bottom

Okay, so you realize that everything is collapsing, and you want to know when to buy and when to sell. This is roughly what happens:

First it will fall to the Fibo target, bounce back up to 50% of the fall then continue back down to make a lower low. It will then climb up to 60% of the initial fall before going down again to the lower low. It will either bounce off or break past the lower low.