i think andy jasse talked about how they are driving engagement and prime signups. you talked about how grocery is a tough nut to crack and they'll have to spend this year figuring out how to differentiate grocery before they start to scale it again, but they expect to scale it again after '23 i think they actually did give some good detail, but with all of this optimization they have to do and the uncertainty on what's going to happen in the macro picture this year, investors do need to consider that. >> that's why you buy amazon the multiple so much higher than their peers but you buy it because you think they might be able to pull off groceries certainly they pulled off advertising. to your cp3 ai, it reminds me of 2021 when bitcoin or blockchain in the name were rising. i'm not making the comparison saying it's the same, but just the buzz takes hold. c3 ai has been on an absolute tear let's continue the conversation on amazon and alphabet with cowen's john blackridge. did you get enough detail on efficiencies and profitability from both those names? >> yeah. i w