If the information is vital to the character—if it affects them or their world—it will also matter to the reader.

Like a recipe, it might sound fun to throw a bunch of spices into something, but what often happens is that the flavors become muddled and indistinguishable. A sign of a seasoned and skilled chef is restraint -one who makes few ingredients shine. Likewise, a skilled author will highlight their most important characters, being sure not to pollute the pages with unnecessary information or names.