arvind, how does it get to 12? what is groupon now?i think groupon is participating in two very powerful secular trends in e-commerce, those being local and mobile. i think the opportunity in front of groupon is much bigger than most people realize, and as julia was pointing out, on mobile, this is such a natural extension of their business. almost 50% of the business in north america comes from mobile, and internationally, it's growing very rapidly. so two powerful trends, and it's also turnaround story that is working with north america billings having accelerated, tech rates getting better, operating costs in check. so a different company than most people are thinking. >> aaron, build the bear case here. why is arvind wrong? >> i won't say it's totally wrong. i will say the local -- the core local business is still in decline, about 4% year over year, positively the u.s. business has stabilized. we're not seeing a return to growth yet in the core locals business. if you look at the groupon goods business, that's growing 50% year ove