At a talk, someone (might have been Eric Evans) said something along the lines of when he was modeling a domain with a group, he wouldn't let them leave until t

At a talk, someone (might have been Eric Evans) said something along the lines of when he was modeling a domain with a group, he wouldn't let them leave until they had three different ways of doing it. Even if the first was perfect and the last two ended up being stupid, forcing them to brainstorm other ways of doing it often came up with hidden gems.