There were many lingua francas of which French was supposedly the first global lingua franca. That changed and it became English (from what I understand). We will probably see another language become the lingua franca, so my question is: should it be English? Are there better candidates out there? Why / why not?
Came here to say that. I intended to propose an immensely complex language that almost nobody understands and that is unrelated to any other family of languages. My choice was Hungarian or Finnish but Euskadi (aka “Basque”) clearly beats it. I had the privilege to learn some words from Basque coworker years ago when I was living in Spain for a while and I swear it is so utterly alien to anything I’ve heard, that it must be of extraterrestrial origin.
Albanian would also fit your criteria as it’s also completely different from everything else and fucking strange at the same time.