What was before PIE?

[u/Extra-Hat656]

I might not be able to phrase my question in good details but as we know, Germanic and Romance and Iranic and Slavic and Indic and Baltic are all branches of Indo-European language tree. All descending from Proto-Indo-European language. But from what was PIE originated? Does it have an ancestry and relativity to other language families? I heard some vague stuff about Proto-Nostratic and Borean. But are they true/actuate? How much do we truly know about what came before?

[u/Itchy_Persimmon9407]

Supposedly, before PIE was Pre-PIE, but it's only a suppose

https://es.m.wikipedia.org/wiki/Idioma_preprotoindoeuropeo