One interesting consequence of this is that your opportunity cost is now highest it's ever been. By choosing to post on Hacker News instead of spending my time better (perhaps even as simply as watching my daughter sleep) I am wasting more value than ever before. In days past, you were substituting something mindless for this. Today, by not spending your time with your family, or reading, or on your hobby or relaxing you are paying an ever more valuable slice of time on addictive social media like this.