Required software tools for further modelling
Should investigate single L?
Should investigate single broadband 120K design? (simpler , realistic on shorter times, while still good LF frequency potnetial). How much time and money can be saved if we go for single 120K detector.
Would is needed to get onto the ESFRI roadmap? technical design? Budget? Sensitivity? decision xylophone vs single detector?
Step 1) consolidate 120K design. 2) Form body (who? how? need people who understand international/european funding landscape) to decide key aspects (triangle vs L, surface vs underground). 3) People know what to design for and can start working.
Splitting of infrastructure and detector. Splitting of initial detector and facility limit.
Probably want to select wavelength for ET design early, as it has influences a lot of follow-on decisions, both design trade-offs but also investment decisions for R+D and prototypes
