" I can’t visualize the situation in which we nuke ourselves into extinction. "
- John Keegan

In everyday language, the statement reflects a difficulty many people have when trying to comprehend or envision catastrophic scenarios that are too immense or unimaginable, such as nuclear annihilation leading to human extinction. The speaker suggests that while one can intellectually grasp the concept of global destruction through nuclear warfare, it is nearly impossible for humans to truly visualize and emotionally process such an apocalyptic event.

The quote delves deeper into the realm of psychology and cognitive science, touching on how humans cope with overwhelming fear or anxiety by blocking out thoughts about unimaginable tragedies. The inability to visualize a scenario like mass extinction might be a defense mechanism, helping people avoid psychological distress. However, it also highlights the detachment between abstract understanding and emotional engagement—a gap that could impede efforts towards preventing such catastrophic events. By acknowledging this mental block, the statement encourages reflection on how society addresses issues of global significance and the importance of making these grave possibilities more tangible to drive action.

John Keegan is a renowned British military historian and journalist known for his insightful analyses of warfare and military strategy. His work often explores complex themes surrounding conflict and its impact on societies. This particular quote, while not directly related to his usual topics, aligns with his broader interest in understanding human behavior during extreme circumstances.