Red Herring

This section describes the tense atmosphere of 1981 in Stockholm during the Cold War, with fears of Soviet invasion and nuclear conflict. It recounts the incident where a Soviet submarine ran aground on Swedish shores, raising fears of espionage and conflict. Swedish defenses, including the use of hydrophones, were mobilized to detect submarines and protect the coast, leading to a series of false alarms and mysterious sightings of submarines and periscopes over the years.

The narrative explores the Swedish military's extensive efforts to detect Soviet submarines, which culminated in the discovery of a mysterious 'typical sound' recorded by hydrophones. This sound was believed to be the distinctive noise made by Soviet subs, but after years of investigation, scientists Magnus and Hocken, through experiments involving fish, concluded that the sound was actually produced by large schools of herring 'farting'. This revelation dramatically altered the understanding of the sonar data and exposed how misunderstandings and assumptions can persist in military contexts.

This section highlights the humorous yet insightful journey of scientists trying to identify underwater sounds. Their experiments with fish, especially herrings, revealed that what was thought to be enemy activity was actually a natural biological process—fish releasing air bubbles. The story underscores how assumptions, if not critically examined, can lead to years of misinterpretation. It also touches on the broader theme of how human perceptions and fears can distort reality, especially in high-stakes environments like military surveillance.

The podcast concludes with reflections on how this long-running misinterpretation served as a humorous, yet profound, lesson about human biases, the importance of scientific skepticism, and the unintended consequences of our perceptions. It also draws a poetic parallel, suggesting that herrings 'fighting back' with their natural behaviors serve as a metaphor for nature’s resilience and the humility needed in scientific and military endeavors.