User blog comment:Planterobloon/The Fast-Growing Hierarchy Explained/@comment-31663462-20180401223649

But seriously though, if FGH is too complicated for you, you should...

learn the slow-growing hierarchy and the Hardy hierarchy first, and there's also two YouTube series related to this. Slow-growing hierarchy gives intuitive expressions while Hardy hierarchy is pretty much as strong as fast growing hiearchy without changing too much fromt he slow-growing one.