modeling so in queueing models where you think about and you know this is not necessarily something specific to me I'd say that this type of trade-off exists everywhere let's just think about like so I'm using a model where essentially the passengers cost is blocking right they may not get served well in a real queuing system like blocking and delay are not completely dissimilar from each other in the sense that if I get blocked but that really is saying is I just have to wait longer to get done with whatever I want