Yeah, I'm 100% sure that he'll have fiat dollars as a major currency here. Probably most other national and multinational currencies (so the pound, the euro, etc). Probably doge because he loves it.

I don't use Twitter and I don't like Elon, so I don't really care, per se, but it really would make sense to add Lighting. And I can't imagine that some form of "zapping," (whether he uses the word itself) won't exist; being able to pay people quickly seems to be his major goal, and replicating his former company Paypal within the tool seems like a goal.

But no way any of the payments -- whether in dollars, doge, or btc -- aren't completely traceable and fully KYC'd.