Authors:

The average daydream is about fourteen seconds long and we have about two thousand of them per day. In other words, we spend about half of our waking hours - one-third of our lives on earth - spinning fantasies.

Jonathan Gottschall (2012). “The Storytelling Animal: How Stories Make Us Human”, p.11, Houghton Mifflin Harcourt
The average daydream is about fourteen seconds long and we have about two thousand of them per day. In other words, we spend about half of our waking hours - one-third of our lives on earth - spinning fantasies.