I know this is beating a dead horse, but this whole messaging/email and social media business just seems like such a useless zero-sum game to me. I get that the

I know this is beating a dead horse, but this whole messaging/email and social media business just seems like such a useless zero-sum game to me. I get that these companies become valuable, but I don't think they're adding much value to the world. Definitely not in proportion to their valuation. In video conferencing, there are at least some hard issues being solved to make that work, and it's improving over time.