We challenged DHSC about the realism of the MVP assumptions, particularly in the context of a growing and aging population, and asked if it would review them. DHSC told us that these were baseline assumptions, enabling like-for-like comparisons to be made between schemes, and that it was going through a process to decide what size each new hospital needed to be. It assured us it was going to review the assumptions rigorously.36 As discussed later in this report, however, any deviations from MVP to make individual hospitals bigger may create an affordability problem for NHP, because the hospitals will cost more.