Hello, thanks for your thoughts. 1. Have not checked out the foursquare or LiveTrekker stuff you mention--will do, thank you. 2. Nothing is visible to anyone,

Hello, thanks for your thoughts. 1. Have not checked out the foursquare or LiveTrekker stuff you mention--will do, thank you. 2. Nothing is visible to anyone, but yourself. Just like your text messages, Facebook messages, or email. This is a large question in tech that we are only a part of--how do we build tools going forward in this environment of ever more granular and structured data, so that we can enjoy the benefits of better memory without introducing new issues. As I mentioned already, we are not a social network exactly because of that, and the industry as a whole has been working actively to address such concerns as soon as they show up. Another example is the end-to-end messaging encryption being adopted by the messaging apps. Anyways, we're very cognizant of that kind of issue and will continue to address them proactively. 3. The temporary sharing issue with family--it is indeed a fun scenario we have heard suggested before. For the time being, we're staying away for the reasons just discussed.