they pushed for a cheap way to send tourists into space (even a small hop of a couple of minutes) and are advancing nice in their testing.

As big companies (boeing, airbus, etc…) won’t go that way it wouldn’t surprize me that SRB decided to finances a study to develop a next-gen concorde…

what’s more, with today’s level of knowledge of aerodynamics, materials, etc, it wouldn’t be all that suprising that somebody manages to develop a quieter and fuel efficient SST