There is a place for argument, and argument is a useful tool of thinking. But argument is inadequate as the main tool of thinking. Argument lacks constructive energies, design energies, and creative energies. Pointing out faults may lead to some improvement but does not construct something new. Synthesizing both points of view does not produce a stream of new alternatives.
Traditional argument is totally useless for such a design process. Instead, we need Parallel Thinking, where each thinker puts forward his or her thoughts in parallel with the thoughts of others-not attacking the thoughts of others. The Six Thinking Hats method is a practical way of carrying out Parallel Thinking. This method is of fundamental importance because it provides us, with a practical method of constructive thinking.
The Six thinking Hats method allows the brain to maximize its sensitivity in different directions at different times. It allows an individual to think in different perspectives on a subject matter. Six thinking Hats method is an example of lateral thinking. In an argument, an individual acts as an adversary in a confrontational manner where each party deliberately takes an opposite view. In an argument, if two people disagree, an argument happens where both of them tries to prove each other wrong. In parallel thinking (Six Hats Method), both views, no matter how contradictory, are put down in parallel. At a later stage, if it becomes essential to choose between different positions, then an attempt to choose is made at that point. If a choice cannot be made, then the design has to cover both possibilities.
At all times, the emphasis in Six hats method is on designing a way forward whereas in an argument, the end conclusions yields no results,