@j_M007 wrote: President Macron says he wants it rebuilt in 5 years. Hmm. experts are forecasting double or triple that time.
Management and technicians likely have a different definition for "rebuilt".
Management likely sees "rebuilding" as the return of tourists and the ability to hold mass. This could happen with the removal of dangerously weakened materials and the installation of a temporary canvas roof. This seems achievable within 5 years.
Technicians, on the other hand likely will focus on the hiring stone masons, glass artists, lots of big lumber and building a permanent roof with a towering spire. Using this definition, rebuilding will take substantially longer.
So, if this question comes up on the CISSP exam, the "best" answer is 5 years.