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.

The big reason why we don't have space colonies and regular trips to the moon is that flying into outer space is just plain 'hard.' The business of safely transporting people off the Earth is a costly affair that requires a lot of technology.

With every inch of land on Earth now catalogued by our satellites, the stars are the next place we as a species must travel. And with a booming world population that will hit 9.1 billion in 2050, large-scale space travel may become a necessity.

Ben Parr Quotes