If I'm not mistaken they already did, or are doing it. Some time ago I was getting a lot of ads related to this in my spam inbox: https://www.diem.com/en-us/. It used to be called Libra.

Edit: Actually, it looks abandoned, it was supposed to launch last year. They sold all the assets to Silvergate and nothing happened as far as I can tell.

There was unsurprising massive backlash against Libra at the time and Facebook silently abandoned the project.

Sorry this was sarcasm

Oh I see :D

Weren't you thinking about an alternative universe ? Dare I say, a metaverse ?