When you're selling something like a car, the only directly involved authority is you, as you judge whatever is offered in trade to be real and sufficiently valuable or not.
Recognition by legal authorities is pretty secondary. If YOU think whatever is worth the trade then the trade can happen.
So, seeing as people do accept Bitcoin for trade in the US, Bitcoin is therefore recognized by authorities in the US, and is therefore real as per your standard.
And also McDonald's yesterday when they bought my non-physical dollars from me using a hamburger as payment.
McD's and the Catholic Church. Who knew they'd be in the same basket!
@volkris That’s a non sequitur. As terrible as they are, McDonalds ‘#hamberders ‘ are physical objects. And there’s a consensus - including authorities - that gives essentially non-physical American dollars an ‘existence’. 🤷🏻♂️