Are they targeting Mach 5? The second paragraph of TFA says "The company's long-term ambition is to develop a commercial aircraft that can travel at Mach 9".

Are they targeting Mach 5? The second paragraph of TFA says "The company's long-term ambition is to develop a commercial aircraft that can travel at Mach 9". They mention that goal a couple of places, and state that hypersonic is defined as Mach 5 or more.