There are sort of three ways in which you can bring on a little bit of extra supply andn situations where there's an unanticipated surge. A lot of surge is predictable, we know when events happen, and we can make sure to move around supply. What doesn't work as well is an anticipated three acts getting a person off the couch. That will not. In my in my time at uber and left, i never really saw that having a deep impact in terms of the supply curve affecting the company.