>>76534463
It's attempt by the "science lifters" to steal and repackage Dante Trudel's methods (because he's team lyle).
Dante calls them pause sets.
What it is:
A set performed to failure, followed by a cycle of partial rest and more reps performed to failure until a rep target is achieved.
The more we know about how hypertrophy works the more valid this method seems for time saving which is why they tried to steal it and rephrase it little to make it seem like it's their idea.