People often hold “Brainstorming sessions”, where no criticism is allowed, in order to come up with a new idea. Most of the time these brainstorming sessions are found to be utterly useless, as many bad ideas come up and many ideas tend to lack originality. However, in a situation where constructive criticism is open, more original ideas come up and better ideas overall result. Our brain needs criticism to be more creative. This is why people hold debates and Socratic-style seminars, in order to invoke creativity from the human brain.