The book progresses from fundamental concepts of deep-sea engineering to the technological aspects of tunnel construction, then explores economic and logistical considerations and concludes with environmental impact assessments. It highlights the need for sustainable practices to protect marine ecosystems, addressing a critical aspect of these infrastructure projects. For instance, modular tunnel construction mentioned in the book could significantly reduce environmental impact.
Ultimately, the book argues that with careful planning and technological advancements, undersea rail links could become a reality.