Toy game is the best GTO video I have seen,Thank you sauce123! But there is a concept very confused me——dynamic equity.

It appeared in the fifth episode of the series named Multistreet Polarized Games 24'19.

the example in the video I don't understand very clear, what dose the relationship about dynamic equity & polarized range?

Why the more dynamic equity, the fewer bluff get stacked? (I have understand the stacked concept in janda's book).
What's the difference with board dynamic & dynamic equity？

Thank's very much if anyone can give a respond.

：）