Interchangeable weapon modules create another version of the fitted-for-but-not-with problem. A government could buy ships ready to accept systems while postponing purchase of the systems themselves. Stored modules also cost money to maintain, which creates an incentive to defer buying them until a war seems imminent. The speakers criticize the resulting assumption that a navy will always have enough warning and freedom to choose when it fights. Modularity provides flexibility only when the equipment needed to use it is available.
Notable Point ยท 49:34-50:43
Modular warships still need their modules purchased
Deferring weapon-module purchases can leave adaptable hulls unequipped when an opponent determines the timing of war.