There are only two mistakes one can make along the road to truth; not going all the way, and not starting
In a meeting with all seemingly agreeable perspectives, it can be challenging to share a dissenting opinion. It is then rewarding when you find others felt the same way- but were not ready not to speak up, but happy you did. Then it gets tougher, because now there is less control of where the conversation moves. It was easier and cleaner when everyone seemed to agree; but will there be as much discovery? Choose discovery, listen to all opinions, and be willing to change yours.