ways to deal with this but extending it then to add in the strategic the strategic component has not been so easy but I think that again this is a really important direction to take the work it's be structure changing the percentage we talked about already and finally I think that there's sort of changing the matching algorithm there's something which has really not discussed a lot if you ask you know uber or lyft I'm sure they would say that they want it to be fairly transparent so you're match to the nearest driver there's all