In Michael Crichton's book "Prey," the quote highlights a deep concern about humanity's technological advancements and their potential consequences. The statement suggests that people often proceed with innovations without fully grasping the implications of their actions. This lack of understanding can lead to significant risks and dangers that might ultimately harm society.

The notion that this ignorance could define the legacy of humanity points to a cautionary perspective on scientific exploration. It reflects the author's belief that without careful consideration and foresight, our technological pursuits may spiral out of control, endangering future generations and possibly leading to our downfall.