Why is dialogue critical?

We humans all have our unique inner world. How we communicate our experience to other humans is through dialogue (verbal and non-verbal). This method is how we can discuss complex and intricate issues and contemplate their resolution. By engaging in conversation, we are creating something new. We are melding at least two human experiences into a new form. Discourse is the only tool that we have been provided to improve our reality because only through dialogue can we possibly cooperate to overcome complex and sweeping issues.