Metaphysics is often dismissed as abstract speculation—something built “in the air.” But for Bernard Lonergan, metaphysics is not guesswork. It is method—and that method is grounded in the very structure of knowing itself.

In this episode, we make a decisive transition: from epistemology to metaphysics. If knowing has a structure—experience, understanding, and judgment—then what is known must have a corresponding structure. This is Lonergan’s principle of isomorphism, and it provides the bridge from how we know to what is.

We explore how metaphysics emerges in three stages—latent, problematic, and explicit—and how it becomes an integral heuristic structure of proportionate being. Rather than constructing a system from above, metaphysics develops from within the subject, through the unfolding of inquiry, correction of bias, and integration of knowledge.

In this episode:

• Why metaphysics is not speculation but method
• The problem of competing realisms and polymorphic consciousness
• The distinction between positions and counterpositions
• The three stages of metaphysics: latent → problematic → explicit
• The meaning of heuristic structure
• The principle of isomorphism (knowing mirrors being)
• Why deduction fails and method must be grounded in the subject
• How metaphysics integrates science and common sense
• The grounding of potency, form, and act in the structure of knowing

By the end, metaphysics appears not as a detached system, but as the self-conscious integration of all knowing.

In the next episode, we move from method to structure: the elements of metaphysics—potency, form, and act.

Chapters
00:00 — Why metaphysics seems abstract
00:50 — From speculation to method
01:45 — The problem: competing realisms
03:00 — Polymorphic consciousness
04:10 — Positions vs counterpositions
05:20 — What metaphysics is (underlying, unifying knowledge)
06:40 — Latent → problematic → explicit metaphysics
07:50 — Heuristic structure explained
08:50 — Isomorphism: knowing mirrors being
09:40 — Why deduction fails
10:20 — Metaphysics in the subject
11:00 — Final synthesis

How do we recover meaning in a fragmented world?
Short reflections on consciousness, conversion, and responsibility.

Read the full essays at Mediated by Meaning: https://mediatedbymeaning.substack.com

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