Like most early enthusiasts, I always thought the way the Internet encouraged multitasking made users less vulnerable to manipulation, while simultaneously exploiting even more of our brain's capacity than before. Apparently not.

Most simply, 'present shock' is the human response to living in a world that's always on real time and simultaneous. You know, in some ways it's the impact of living in a digital environment, and in other ways it's just really what happens when you stop leaning so forward to the millennium and you finally arrive there.

Most of us still haven't grasped the fact that everything we commit to the digital space - not just our public blogs and broadcast tweets, but every private text message, email, and voicemail is likely to be stored and accessible. Forever.

Once everyone is connected to everyone and everything else, nothing matters anymore. If everyone in the world is your Facebook friend, then why have any Facebook friends at all? We're back where we started. The ultimate complexity is just another entropy.

Invest in people who will take care of you when you're old.

When Steve Jobs toured Xerox PARC and saw computers running the first operating system that used Windows and a mouse, he assumed he was looking at a new way to work a personal computer. He brought the concept back to Cupertino and created the Mac, then Bill Gates followed suit, and the rest is history.

The function of a book is to provide a reading experience.