So, two points: First of all, clickbaity title as he says it might be "pointless". Secondly he is talking about topology. I find it to be a very hard subject.

So, two points: First of all, clickbaity title as he says it might be "pointless". Secondly he is talking about topology. I find it to be a very hard subject. If you pick up most topology books you will find an area of math that most people have never really been prepared for and the books themselves start with some concepts that are very abstract. Now depending on what you are interested in, Topology can provide many insights into the shapes and constructions of spaces. Things like metric topology tie into how vector spaces are constructed. Things like n-dimensional manifolds can be related to aspects of machine learning. I recommend The Teaching Company’s Shape of Nature videos for learning some general ideas about topology. Just a disclaimer, I am not a mathematician, so I might be off on some my perceptions. Also no pun intended on pointless.