> Two tweets containing same link can have very different and often contradictory messages.

That sounds really interesting! I like how that might impact people's bubbles.

I'm currently teaching a class where students are learning to build simple apps, and ask critical questions about the apps we use. Would you be interested in doing a skype session with my class (~12 students) about how you and your team are approaching this issue, from a social and technical perspective? They'd love it, and you might get some good insights into how high school students think about these issues in deciding which apps to use.