John Cleese on creative thinking

Open time is important. Most of my ideas come during such times. But I have not been very successful in implementing them because my close time has not been very disciplined.

Cleese's point about open time vs. closed time maps exactly to Ash Maurya's ideation switch for a lean startup:

http://practicetrumpstheory.com/2013/01/the-ideation-switch/

Great lecture. I'm curious to know what companies/organizations actually allow this kind of flexibility--outside of the entertainment industry.