We can theoretically understand concepts in the abstract, but sometimes more is needed for us to take them fully on board. The article mentions the people resp

We can theoretically understand concepts in the abstract, but sometimes more is needed for us to take them fully on board. The article mentions the people responsible not grasping the full scale of the problem. Giving them the visceral image of the potential destruction might help them take on board the risk emotionally as well as intellectually.