Trading shares is like fighting wars. At the end of the day, commanders are doing just two things, confusing opponents and reading opponents' real intention. Those who got confused will be defeated and victory belongs to those who have a clearer crystal ball. That's why it's being said, trading (and war) is an art, not a science. Nonetheless, the approach could be pure logical.
First a commander will build a couple of potential scenarios based on what's happening and, more importantly, a hypothesis of the enemy's objective. Then he evaluates them and determine, by logic, which one makes the most sense. This will crack through all the illusion and reveal the truth, because illusion might be misleading, but seldom make sense.
Let's try to apply such approach to what happened today in the stock market. The S & P 500 dropped the fourth day. By driving the market down, big players may want to (a) shake out some traders and acquire their shares at a lower price, or (b) continuously push the market down to profit from their short position.
If the purpose was to shake out weak hands, the sell off should be violent but brief. Violence is to generate fear among traders so they will give up their shares. But, it has to be done in a short period of time, otherwise the mood of the market will turn bearish that makes it much harder for big players to pull the market up afterwards. We see many one-day or two-day forceful sell off along the way up when the market was rallying off its March low. As today is the fourth day of the sell off, it appears this scenario does not make much sense.
Now consider scenario (b). Assume big players want to push the market further down. Does a tiny doji, as what we have seen today, make any sense? Shouldn't they keep making big drop everyday and generate huge panic?
Yes it is good to have panic, which will mobilize more traders to sell, and generates bigger panic, and further more traders to sell. But big players still have limited amount of capital and moving the market is a costly job.
The high volume of last four days shows the decisiveness of big players. It also shows that a fairly large amount of their capital was locked in short positions. To continue moving the market down, at some point they have to cash out some short position, better with profit, and free up precious capital. And this is exactly the purpose of today's tiny doji.
The doji is so tiny that it's not exaggerated to claim the market is dead. But this serves its purpose well: the price didn't rise much so big players can buy back shares with profit; also the price didn't drop much so the fear is in control, which is more important as buyers are needed down the road when big players start to sell again --- when selling, you do want to sell at a higher price. This is not an easy job and they have done it well. Maybe too well to me and it starts to smell fishy.
Back to the military term, the doji to big players is as the Midway Island to U.S. Navy. It's an relay point where the force has a rest and gets ready for big leap. The next move is going to be deadly.
What I said above may make a good story, but may still be far away from a good trading plan. And, another thing an experienced commander will do is to constantly monitor the battle field, reevaluate the logic, and change plan if necessary.