"wall street journal's" joanna stern is with us after the curtain-raiser from our steve kovach. good to see you. are you a buyer of this view that a huge part of the install base hasn't upgraded in years and is poised to? >> i definitely believe a lot of the install base hasn't upgraded in years. that's because we have seen incremental updates over the last few years and phones last even longer, right? you can replace that battery. you can replace that screen when you break it. so, that is part of the reason. i think that this year we're going to see, again, another incremental update, what people may say is revolutionary but evolutionary. and around that, we do see people who are going to need to upgrade. whether that's the two to three or three to four-year cycle. >> we were talking a moment ago about some of the higher expected asps at the high end. are you going to be sort of on watch for what you think the consumer can pay, can afford? >> yeah. last year my review of the iphone 14 was go pro or go home. it was very clear the pro models had superior features. had the dynamic