The reality is that we each have limited working memories, meaning we can only retain a certain amount of new information in our minds at any given time. If we’re forever flooding the brain with new facts, other information necessarily gets crowded out before it’s been retained in our long-term memory. If you selectively reduce what you’re taking in, then you can retain more of what you really want to remember.
Tony Schwartz, "In Praise of Depth," The Energy Project, 17 Jan 2014,
http://theenergyproject.com/blog/in-praise-of-depth.
