re: #220 Obdicut
I don’t think people do understand what they’re talking about.
Maybe, maybe not. Inability to explain a concept to someone else does not necessarily imply that you don’t grasp it yourself (though it might be an indicator of such). Also, incomplete grasp of a concept by a person does not necessarily imply that the concept itself is invalid. The fields of mathematics and math education give fairly clear examples of this.
I don’t think non-communicatable things exist.
Well, I do, and since they’re non-communicatable, it’s not really fruitful to argue about it.