I once messaged and had my post on his blog. It had a typo, so I wouldn't go so far as to say he did it. There are always some people who will lavish praise.
There are certain setups in the market where several scenarios can go, and if it does go to the scenario you envision, then the subsequent action can be estimated with a very high degree of accuracy. The easiest is what I'd call a double bottom/double top breakout. So if the market makes a double top and then breaks through it, when it falls back down on the tops for the first time, it becomes a support level. Same thing for double bottoms on the downside resistance. It is more accurate on indexes. I actually did this today and was off only 9 cents from the Dow's low the first time it touched. What's interesting is that I envisioned this possibility last night, IF the market gapped up. It did, and I just waited for a dip to buy at that point.