Richard Foster, from a 2011 interview:

If superficiality is the curse of the modern age, what’s the curse of the postmodern age?

Distraction. With the Internet and entertainment, so many different ways to keep people’s minds constantly shifting, they don’t have to think. And, of course, churches sometimes play right into that—with fast-paced services that keep people jumping all over the place. That’s why solitude and silence are among the most important spiritual disciplines for today.