how to understand Al Brooks

His past history IS indicative of future results.

 

Well, there is that. But, hey, you never know...

 

It could be the high and low of the previous bar.
Off the previous bar you have all the information to trade the current bar.

 

Just don't anything valuable fall out while it is open.

 

No guarantees.

 

Without considering any of the bars that preceded it?

 

Yup.
As Padu said, it could be a 10 year bar.

 

Or a Hundred year bar

 

Al Brooks uses to many unusual names for different different trading situations. Combine that with the intricate examples he uses and it becomes a nightmare to read and extract the principles.