What are the strategies that Garrett Hardin uses to develop his ideas in lifeboat ethics?

In "Lifeboat Ethics," Garrett Hardin employs analogies and metaphors, particularly the lifeboat metaphor itself, to illustrate the limitations of resources and the moral dilemmas of sharing them. He contrasts the concept of a "lifeboat" with a "sinking ship" to emphasize the dangers of overpopulation and resource depletion, arguing that indiscriminate aid can lead to the downfall of all. Hardin also uses empirical evidence and philosophical reasoning to support his views on the necessity of maintaining boundaries and prioritizing the survival of those within the lifeboat. Ultimately, his strategies aim to provoke critical thinking about ethical obligations and the sustainability of resource management.