Mayer realized that pouring creativity into smaller, less important, promotional outlets like tweets not only distracted him from focusing on more critical endeavors like his career, it also narrowed his mental capacity for music and writing intelligent songs.
"The tweets are getting shorter, but the songs are still 4 minutes long. You’re coming up with 140-character zingers, and the song is still 4 minutes long...I realized about a year ago that I couldn’t have a complete thought anymore. And I was a tweetaholic. I had four million Twitter followers, and I was always writing on it. And I stopped using Twitter as an outlet and I started using Twitter as the instrument to riff on, and it started to make my mind smaller and smaller and smaller. And I couldn’t write a song."
Also somewhat related: We share too much, and it’s stifling innovation.