emily: you said when you spoke to david kilpatrick, you could not construct a short-term model by whichbecomes profitable. do you have a better idea now when this will become profitable? mark: no. the reality is that if a lot of people can't afford to pay for data access in these places, there probably aren't big ad markets and it probably isn't going to be particularly profitable in the near term. we will probably lose a bunch of money because supporting facebook is a service of storing photos and content people want to share. we probably won't offset it by making much. emily: you said connectivity is a human right. you want to do good things. if that's the case, why not give access to the complete internet? why just a few specific apps? mark: it comes down to the ethics of how this works. it turns out that most of the internet is consumed by rich media, especially videos. if you look at things like text, text messages, search or wikipedia or basic financial or health information, that can be delivered for relatively cheaply and can often consume less than 1% of the overall infrastruct