My theory of tab width is that it should be somewhat proportional to the average height of indented sections of code in that language. That is, if a given lang

My theory of tab width is that it should be somewhat proportional to the average height of indented sections of code in that language. That is, if a given language is really verbose and requires a lot of code to do simple things, the functions, if-statements, loops, etc will probably be a lot longer (like in C or Go) and so you need wider tabs to help visually align things. But if a language encourages a style where functions are just a couple of lines long, if statements and loops are rare (or at least comparatively short), having excessively wide indentation can hinder readability.