What Is Topological Matter?

Topological matter is something we've only recently invented in the last 20 years or so. It's neither an insulator, something that cannot conduct electricity, nor a metal,. So solid state physicists used to divide all kinds of stuff into two categories, insulator or metal. And now they've developed this thing, which is sort of like neither and both - i see. All right, pretty interesting questions. To feel like this at a deep level of knowledge about physics. Heresay, i hear a lot of words related to physics, yet people defferently get the clue also that it's related to tapology and geometry in thinking about shapes and structures and maps. I like