Why every attempt to find absolute truth is doomed to fail, according to philosophy.

Ideas & Philosophy · Published 3 October 2026 Swipe more like this →

In short: German philosopher Hans Albert argued that all efforts to definitively justify knowledge are trapped in a logical quagmire. By introducing the famous Münchhausen trilemma, he demonstrated that any attempt at certainty inevitably collapses into circular reasoning, infinite regress, or arbitrary dogmatism, leaving falsification as our only path to progress.

Born in 1921, Hans Albert became a central figure in 20th-century German thought, most notably through his participation in the Positivismusstreit, or positivism dispute, during the 1960s. While he initially embraced Karl Popper’s critical rationalism, Albert expanded this framework far beyond the philosophy of science. He argued that the attitude of criticism is an ancient European tradition that should be applied to every sphere of human activity, including religion, politics, and economics.

The core of Albert’s contribution is the Münchhausen trilemma, named after the fictional Baron who supposedly pulled himself out of a swamp by his own hair. Albert used this metaphor to dismantle the classical problem of justification. He posited that any attempt to verify a thesis must fail because it inevitably hits one of three dead ends: an infinite regress of justifications, a dogmatic stop where one arbitrarily halts the questioning, or a circular argument. Because these paths are inescapable, Albert concluded that we cannot achieve absolute certainty through induction or deduction.

Rather than despairing at this limitation, Albert advocated for a life of critical rationalism. He believed that progress is only possible through the persistent falsification of ideas. Unlike some of his contemporaries who retreated into abstract, transcendental theories, Albert engaged directly with his opponents—such as Jürgen Habermas and Karl-Otto Apel—on their own terms. He maintained that we should remain open to the possibility that others might be right, emphasizing that critical rationalism is only successful as long as no better alternative method is found.

Albert’s approach was defined by a rejection of solemn gravity and moralizing. He lived to be 102, passing away in 2023, and left behind a legacy of roughly 30 books that challenged the intellectual immunity against criticism. By insisting that we must constantly subject our own beliefs to rigorous scrutiny, he transformed critical rationalism from a dry academic method into a practical, everyday heuristic for navigating a complex world.

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