Oral tradition can function as real evidence—sometimes. But it’s not automatically reliable, and it isn’t always “just a telephone game,” either. In this episode, we lay down guardrails for how to evaluate worldwide flood traditions critically and fairly—without sliding into cynicism, speculation, or wishful thinking.

We build an “evaluation toolkit” for weighing flood stories as evidence: provenance (who recorded it, when, and from whom), transmission setting (ritual/public context, custodians, specialists), genre, and the difference between shared motifs (often “cheap” and common) versus shared structure (more “costly” and evidentially weighty).

Along the way, we look at how stories predictably reshape over time: compression/expansion, harmonization, normalization (turning weird into familiar), moralization, politics/legitimization, and “prestige borrowing”—plus the complications of missionary/colonial recording and finally, we ground this in three lanes of observable evidence—psychology, ethnography, and ancient textual witnesses—so we can ask better questions as we move into global flood traditions in upcoming episodes.

On This Rock Biblical Theology Community:  https://on-this-rock.com/   

Website: genesismarksthespot.com   

Patreon: https://www.patreon.com/GenesisMarkstheSpot   

Music credit: "Marble Machine" by Wintergatan

Link to Wintergatan’s website: https://wintergatan.net/  

Link to the original Marble Machine video by Wintergatan: https://www.youtube.com/watch?v=IvUU8joBb1Q&ab_channel=Wintergatan 

Chapters

• (00:00:00) - Flood Myths: What Are We Even Doing Here?
• (00:02:30) - Three Guardrails: Cynicism, Credulity, Speculation
• (00:04:35) - The Toolkit: How to Test a Tradition
• (00:08:58) - Two Complications: Missionaries + Local Floods
• (00:11:24) - How Stories Drift: The Usual Suspects
• (00:13:36) - Core vs Surface: Stop Overreading Parallels
• (00:21:46) - Social Pressure: Identity, Authority, Contact
• (00:24:24) - Memory Science: Why Details Change
• (00:28:37) - “Memory Contagion”: How Groups Rewrite Stories
• (00:30:57) - ANE Flood Texts: Variation Isn’t a Bug
• (00:39:08) - Why Traditions Converge (Even Without “Proof”)
• (00:43:37) - Cheap vs Costly Similarities (This Matters)
• (00:51:21) - Red Flags + Stability Markers