Thanks Alex!
Which video exactly?

It is sooo difficult to spot all those details, and each seems important.

EDIT:
This one, I guess.
https://www.armstrongeconomics.com/armstrongeconomics101/training-tools/instructional-video-reversals-1-rule/

EDIT2:
No, not that one.
Can you post a link?

In than one he suggests entering on a retracement to reversal (but typically). You also have to look at timing perspective.