Has Boom Supersonic solved the problem that when the government tested the impact of frequent sonic booms on the populated centres in the 1960s it drove people nuts, caused building damage, and people hated it?
https://paleofuture.gizmodo.com/when-the-faa-blasted-oklahom...
I assume Boom is like so many startups in that they have ignored history and have barreled ahead anyway.