What does the intra-depth specifically mean?

[Brave731]

The intra-depth in the paper means very abstract. What does intra-depth specifically mean?

[Fangkang515]

确实文章写的贼抽象，，，估计是大佬吧，大佬喜欢用数学解释

[lucidrains]

@Brave731 It was never made clear by the authors, but I think it is there to expand the amount of contextual information that can be summarized, kind of like multi-headedness from attention