The statement 'The day before something is a breakthrough, it’s a crazy idea.' is inspirational and motivational in nature. It suggests that innovative or revolutionary ideas often face skepticism before they are recognized as valuable or transformative. The statement encourages perseverance and open-mindedness towards unconventional ideas, which can be relevant in discussions about innovation, creativity, or change management. However, it does not directly engage with specific public issues, policies, or societal debates in a substantive way. Therefore, it does not constitute public discourse as it lacks a direct engagement with civic dialogue or societal concerns.