In The Startup, Thomas Oppong on Deep Thinking In The Age of Distraction.

Today, the first thing people do when faced with a moment of downtime is to reach for their smartphone. “The most thought-provoking thing in our thought-provoking time is that we are still not thinking,” said Martin Heidegger. Our insatiable need to tune into information — at the expense making time to think, relax, refresh and recover is costing us. We’re addicted to distraction, and it’s holding us back. Interruption-free space is dying.

Quote is paraphrased from "What Is Called Thinking?", p. 4.