The Navigational Way

Convergence

Multiple Independent Discovery, or Simultaneous Invention

The framework presented in this book emerged over forty years of clinical practice, personal reconstruction, and sustained attention to how minds actually behave. Although I have always been aware of Erikson’s stages of development through my medical training, I developed this framework largely in isolation from academic psychology and philosophy, working from direct observation rather than existing theory.

When a person independently develops a theory only to discover that others have already created something very similar, they are experiencing convergent evolution in thought (often called simultaneous discovery or multiple discovery). This is incredibly common in research. It does not devalue the work; instead, it serves as a powerful validation that the logic is sound and aligned with reality.

Consistent with the framework’s own account of its development, these resemblances are treated as convergence, not derivation: the framework was built independently through clinical observation before these parallel traditions were encountered, and the convergence stands as confirmation rather than borrowed authority.

These nine research maps were commissioned in August 2026 — after the framework was finished — to find out who else had arrived at the same ground, and to say plainly where they and I part company. Each one names its departures as carefully as its agreements. Erikson, named above, is the single exception: I took the vocabulary and rejected the crisis framing.

Click on the topic you would like to explore the convergence:

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