kind of a reservation earnings that they want to reservation earnings rate okay this is also really interesting so this is kind of a target earning model of the driver like basically they have some fixed mental model of how much they want to be able to make and they enter if it exceeds that you know I think Chris pointed to examples of a lot of different driver behavior in their data and you know you would certainly see that across all the platforms so I think that's that's a that's a really interesting direction also first of all