• The concept of inductive density refers to the degree or frequency with which our inductive reasoning processes—those based on observations and experiences—encounter regularity or consistency in the phenomena we observe.This clarifies that inductive density measures how often we observe consistent patterns, which is crucial for building our understanding and predictions.
  • The concept of inductive density, indeed, serves as a key framework for understanding why full certainty remains elusive in human knowledge. This final quote encapsulates the essence of the argument, suggesting that despite our best efforts, the nature of inductive reasoning means that full certainty is always just out of reach, emphasizing the need for continuous inquiry and humility in our quest for knowledge.
  • Asymptotic Approach to Absolute Confidence: The concept of approaching absolute confidence in an asymptotic manner means that while our confidence in the predictability of certain phenomena can grow increasingly strong, it never reaches 100% certainty. This quote highlights the inherent limitations in reaching absolute certainty, stressing an asymptotic approach to confidence building.
  • Subjectivity and the Limits of Human Cognition: The intrinsic subjectivity of human minds introduces a fundamental limitation to achieving absolute confidence. This point stresses how our individual perceptions and biases inherently limit our ability to achieve full certainty.
  1. Prior to an examination of presuppositions, elaborate on the notion of inductive density in which our inductive experience regularly encounters invariance in phenomena that legitimately strengthen our induction-based confidence for subsequent regularity. This confidence trajectory through continued regularity approaches, in an asymptotic way, absolute confidence, but is prevented from ever reaching absolute confidence by the intrinsically subjective nature of human minds.
    1. Inductive Density and the Limits of Confidence
  2. It appears to me that inductive density fully depicts why humans can never claim to have full certainty. There is nothing that would legitimately ground full certainty, or what is sometimes referred to as a presupposition. Is this reasoning solid?
  3. To address claims of “self-evident” presuppositional knowledge, I would posit that beliefs that exceed the degree of inductive regularity available to the mind of the subject are irrational. And to say the beliefs warrant full certainty is logically incoherent. Interestingly, that also include logic since our confidence in logic also accrues to merely a high inductive density rather than to full certainty. Is this argument solid?
  4. But axioms themselves cannot escape their dependence on induction. Axioms held by human minds have been acquired inductively. Right?
  5. I would submit that even our intuitions deserve only as much confidence as their induction-derived track records justify. We can never claim our intuitions have been adequately tested to an degree that warrants their creation of self-evident presuppositions. Right?
  6. The notion of axioms is often misconstrued by conflating objective truth and subjective belief. While a proposed truth is either true or false, that does not alter the epistemic limitations on the human mind. Right? While we can say with an extreme degree of inductively-justified confidence that a proposition is true or false based on our inductive experience, there is nothing that justifies going beyond the human limit of a sub-absolute asymptotic approximation of full certainty. Right?
  7. Create a 10-item quiz on the discussion above.
    1. Quiz
    2. Answers
    3. Quiz: The Limits of Certainty
  8. Provide 15 discussion questions relevant to the content above.
    1. Discussion Questions: The Limits of Certainty

Prior to an examination of presuppositions, elaborate on the notion of inductive density in which our inductive experience regularly encounters invariance in phenomena that legitimately strengthen our induction-based confidence for subsequent regularity. This confidence trajectory through continued regularity approaches, in an asymptotic way, absolute confidence, but is prevented from ever reaching absolute confidence by the intrinsically subjective nature of human minds.

“HUMANS MAY CRAVE ABSOLUTE CERTAINTY; THEY MAY ASPIRE TO IT; THEY MAY PRETEND, AS PARTISANS OF CERTAIN RELIGIONS DO, TO HAVE ATTAINED IT. BUT THE HISTORY OF SCIENCE TEACHES THAT THE MOST WE CAN HOPE FOR IS SUCCESSIVE IMPROVEMENT IN OUR UNDERSTANDING, LEARNING FROM OUR MISTAKES, AN ASYMPTOTIC APPROACH TO THE UNIVERSE, BUT WITH THE PROVISO THAT ABSOLUTE CERTAINTY WILL ALWAYS ELUDE US.”

Carl Sagan

It appears to me that inductive density fully depicts why humans can never claim to have full certainty. There is nothing that would legitimately ground full certainty, or what is sometimes referred to as a presupposition. Is this reasoning solid?


To address claims of “self-evident” presuppositional knowledge, I would posit that beliefs that exceed the degree of inductive regularity available to the mind of the subject are irrational. And to say the beliefs warrant full certainty is logically incoherent. Interestingly, that also include logic since our confidence in logic also accrues to merely a high inductive density rather than to full certainty. Is this argument solid?


The notion of axioms is often misconstrued by conflating objective truth and subjective belief. While a proposed truth is either true or false, that does not alter the epistemic limitations on the human mind. Right? While we can say with an very high degree of inductively-justified confidence that a proposition is true or false based on our inductive experience of this apparent binary, there is nothing that justifies going beyond the human limit of a sub-absolute asymptotic approximation of full certainty. Right?


Create a 10-item quiz on the discussion above.


Provide 15 discussion questions relevant to the content above.


  1. Prior to an examination of presuppositions, elaborate on the notion of inductive density in which our inductive experience regularly encounters invariance in phenomena that legitimately strengthen our induction-based confidence for subsequent regularity. This confidence trajectory through continued regularity approaches, in an asymptotic way, absolute confidence, but is prevented from ever reaching absolute confidence by the intrinsically subjective nature of human minds.
    1. Inductive Density and the Limits of Confidence
  2. It appears to me that inductive density fully depicts why humans can never claim to have full certainty. There is nothing that would legitimately ground full certainty, or what is sometimes referred to as a presupposition. Is this reasoning solid?
  3. To address claims of “self-evident” presuppositional knowledge, I would posit that beliefs that exceed the degree of inductive regularity available to the mind of the subject are irrational. And to say the beliefs warrant full certainty is logically incoherent. Interestingly, that also include logic since our confidence in logic also accrues to merely a high inductive density rather than to full certainty. Is this argument solid?
  4. But axioms themselves cannot escape their dependence on induction. Axioms held by human minds have been acquired inductively. Right?
  5. I would submit that even our intuitions deserve only as much confidence as their induction-derived track records justify. We can never claim our intuitions have been adequately tested to an degree that warrants their creation of self-evident presuppositions. Right?
  6. The notion of axioms is often misconstrued by conflating objective truth and subjective belief. While a proposed truth is either true or false, that does not alter the epistemic limitations on the human mind. Right? While we can say with an extreme degree of inductively-justified confidence that a proposition is true or false based on our inductive experience, there is nothing that justifies going beyond the human limit of a sub-absolute asymptotic approximation of full certainty. Right?
  7. Create a 10-item quiz on the discussion above.
    1. Quiz
    2. Answers
    3. Quiz: The Limits of Certainty
  8. Provide 15 discussion questions relevant to the content above.
    1. Discussion Questions: The Limits of Certainty



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Phil Stilwell

Phil picked up a BA in Philosophy a couple of decades ago. He occasionally teaches philosophy and critical thinking courses in university and industry. He is joined here by ChatGPT 4, GEMINI, CLAUDE, and occasionally Copilot, his far more intelligent AI friends. The five of them discuss and debate a wide variety of philosophical topics I think you’ll enjoy.

Phil curates the content and guides the discussion, primarily through questions. At times there are disagreements, and you may find the banter interesting.

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