Although it's not quite the same, _pro_noun dropping[0] is fairly common in some languages and even happens in English under some circumstances (generally in ei

Although it's not quite the same, _pro_noun dropping[0] is fairly common in some languages and even happens in English under some circumstances (generally in either very informal or highly technical communications). In contexts where inference is easy there's a certain logic to dropping nonessential fillers. [0]: https://en.wikipedia.org/wiki/Pro-drop_language https://en.wikipedia.org/wiki/Pro-drop_language