Philosophical skepticism, particularly radical skepticism, challenges our everyday belief system by questioning the certainty of everything outside our immediate consciousness. Chris Ranalli’s paper delves into this philosophical discourse with a novel question: Is there a moral dimension to this pervasive doubt? In his compelling exploration, Ranalli argues that radical skepticism does not merely pose an intellectual conundrum but may infringe upon our moral obligations toward others.

The Moral Burden of Skepticism

At its core, skepticism requires us to question the existence of anything beyond our subjective experience. This could mean doubting everything from the external world and other minds to past events and the love of our children. However, Ranalli proposes a provocative stance: extending this doubt too far might conflict with the ethical commitments inherent in our relationships.

Consider a simple example: believing in the love of our family. Skepticism might compel us to question the existence of our family members, undermining the very foundation of these relationships. But is such radical doubt justifiable, or does it encroach upon the trust and commitment required to maintain healthy interpersonal connections? Ranalli’s investigation suggests that such skepticism may be ethically deficient, compelling us to forsake necessary doxastic (belief-related) commitments we owe others.

The Ethical and Eudaimonic Weaknesses

The primary thrust of Ranalli’s argument is that radical skepticism can lead to what he terms a “serious moral and eudaimonic weakness.” By constantly doubting the existence and intentions of others, skeptics may fail to engage authentically in relationships, potentially leading to moral and personal failings. For example, failing to believe in your child's affection because you doubt their very existence could be seen as morally reprehensible by common societal standards.

Moreover, Ranalli distinguishes between two types of responses to skepticism: encroachment and abrogation. The former suggests that our moral and well-being considerations should influence our doxastic practices, perhaps leading us to moderate our skepticism. The latter, more extreme, posits that we might need to reject skepticism outright if it leads to moral transgressions or personal unhappiness.

The Political Implications

Chris Ranalli's exploration of philosophical skepticism, particularly its radical form, reveals moral and political implications. He argues that extreme skepticism—doubting everything from the existence of other minds to past events—can undermine our moral obligations and the ethical commitments in our personal relationships, such as trust and belief in familial love. This can lead to what Ranalli terms a "serious moral and eudaimonic weakness," where skeptics fail to engage authentically in relationships, potentially causing moral and personal failings.

Politically, such skepticism can erode societal trust and destabilize democratic processes by fostering cynicism and disengagement from civic duties. It challenges the ideological underpinnings of political systems and can paralyze public policy initiatives by causing doubt about the existence of problems or the efficacy of solutions. Furthermore, political actors can exploit radical skepticism to manipulate public opinion and sow discord, thereby undermining effective governance.

While skepticism can be a useful intellectual tool, its radical form poses significant risks to both personal relationships and societal structures, necessitating a careful balance between healthy doubt and necessary trust.


Erkenntnis Volume 87 No. 3 June 2022 : An international journal of scientific  philosophy. Sommaire : An evolutionary sceptical challenge to scientific  realism by Christophe de Ray - We need non-factive metaphysical
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