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https://boomsupersonic.com/flyby/inaugural-first-flight-xb1-supersonic-demonstrator?twclid=2-73w9sed9y7smwu4vp44rs4v9q
I think it is a real airplane, but watching that video I wasn't sure.
XB1 is an abbreviation for the Microsoft gam console - XBox 1. And a lot of that video looks like the Flight Sim App to me. The Flight Sim is getting better at looking real.