is being drawn iid from some valuation distribution and if if the value that's drawn is bigger than the current price they enter there's some eggs agenda straight of what I'll call app opens Chris talked about the same thing and that's basically like I open the app and looked do I want to request a ride and then look at the price and determine whether I actually request a ride so from that it's pretty easy to work out based on the pricing you know formula what is the rate of ride requests it's the exogenous rate times the tail probability that the