In a world saturated with data, the impulse to know more often overshadows the consideration of what might be better left unknown. This tendency, termed "deliberate ignorance," is a recognized human behavior where individuals actively choose to avoid acquiring certain information, even when it's readily available.
Psychologist Ralph Hertwig and lawyer Christoph Engel, authors of "Deliberate Ignorance: Choosing Not to Know," highlight historical examples of this phenomenon. In the early 1990s, when the archives of East Germany's secret police, the Stasi, were opened, many citizens opted not to examine their files. Hertwig and Engel estimate that more people chose to remain unaware of whether they had been spied upon than those who did.
This behavior contrasts with the traditional view of humans as "informavores," creatures inherently driven to seek and consume information, a concept described by psychologist George Miller. However, Hertwig and Engel argue that deliberate ignorance is a pervasive aspect of modern life. People frequently avoid checking bank statements, skip medical appointments, or ask for "no spoilers" about movies and books.
Even prominent figures have practiced deliberate ignorance. Nobel laureate James Watson, a co-discoverer of DNA's structure, requested that his genome sequencing omit the ApoE4 gene, which is linked to Alzheimer's risk, due to his grandmother's experience with the disease.
The motivations behind choosing ignorance are varied. Primarily, it serves as a method of emotional regulation. Avoiding unpleasant truths, such as a neighbor's past surveillance or a partner's fleeting thoughts of infidelity, can minimize negative feelings. Similarly, withholding knowledge, like the sex of a baby until birth, can preserve anticipation and joy.
Deliberate ignorance can also function as a defense against personal biases. The scientific practice of blinded studies, where researchers are unaware of treatment assignments, prevents preconceived notions from influencing outcomes. Historically, blind auditions in orchestras have led to increased acceptance of female musicians.
However, the practice is not without its risks. Choosing ignorance can be detrimental when it leads to neglecting crucial personal health or financial information. For instance, a significant percentage of individuals who tested for HIV did not return for their results, potentially contributing to the disease's spread.
The modern information landscape, characterized by "information foraging" and "infosnacking"—mindlessly consuming trivial online content—exacerbates the challenge of discerning what knowledge is valuable. This constant influx of superficial information can lead to anxiety and a disconnection from lived experiences, as seen with the obsessive use of fitness trackers.
Experts suggest a balanced approach: while a complete overhaul of information consumption may not be necessary, curating one's "knowledge diet" is crucial. This involves consciously choosing to disregard less important details, like step counts or random news snippets, while simultaneously engaging with more substantive content. This could include pursuing neglected hobbies, reading nonfiction, or having deep conversations with loved ones.
Ultimately, the decision of what to know and what not to know is deeply intertwined with emotional well-being. Examining how acquired knowledge affects one's feelings—whether it induces happiness, anxiety, excitement, or sadness—can guide more intentional choices about information intake. In strategically creating spaces of intentional ignorance, individuals may discover unexpected moments of tranquility and even bliss.