Right, but you have to spend money at some point. Once you do, you need to make assumptions on how the future will look and keep track of things. If I assume a

Right, but you have to spend money at some point. Once you do, you need to make assumptions on how the future will look and keep track of things. If I assume a monthly OpEx of 100, somebody has to keep track of that number, the worst that can happen is to have an increase to say 120 and nobody noticing or thinking it's worth notice...