Google is famous for making the tiniest changes to pixel locations based on the data it accrues through its tests. Google will always choose a spartan webpage that converts over a beautiful page that doesn't have the data to back it up.
More and more, the things we do in real life will end up as Facebook posts. And while we may be consoled by the fact that most of this stuff is being posted just to our friends, it only takes one friend to share that information with his or her friends to start a viral chain.
Sharing with just your friends doesn't protect your privacy. I know the people at Facebook will disagree and argue that users can control what is shared with whom. But this is simply an illusion that makes us feel better about all the sharing we have done and are about to do.
Trending topics helped make Twitter a more relevant metric of what the world was talking about at any given moment. Google has worked for years in the space, most notably with Google Trends and Hot Searches, but Google+ offers the search giant the ability to see what is truly trending in real time.
Point-to-point transit via low orbit could dramatically speed up international flights, connecting the world even further. And safe, consistent space travel opens up the possibility of commercial space stations, trips to the moon and exploration beyond.