Boom hasn't solved the shockwave issue, have they? The Concorde didn't do overland routes over populated areas because of this. For example the NYC <-> Mexico C

Boom hasn't solved the shockwave issue, have they? The Concorde didn't do overland routes over populated areas because of this. For example the NYC <-> Mexico City route overflew Florida for a time, and it would slow down to subsonic speeds over land. So even if Boom launches you likely wouldn't get cross-Europe routes.