Pass a drawing through a sequence and compare previous-frame drift to anchored reference. The tool makes temporal coherence tangible — you can see exactly how small changes accumulate into drift when there is no stable reference point.
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Without a stable anchor, small changes accumulate. Identity, proportion, and setting shift without any single frame being obviously wrong — the problem is the sequence, not any one image.
When a reference frame stays visible, coherence increases. The direct comparison shows exactly what the anchor preserves — and what it can’t hold across many frames.
Drift is a property of the sequence, not any one frame. Temporal Telephone makes that accumulation inspectable by slowing it down so you can name where and why it begins.
Run both modes with the same subject. Name what drifts and what holds — precisely, not generally.
Write down what you expect to change: identity, proportion, setting, or style. Then watch the sequence and check your prediction.
Run the same basic subject in previous-frame-only mode, then with an anchor. Note exactly what changes — not generally, but in terms of specific named properties.
Use specific categories: identity drift, physics break, style drift, camera jump, or temporal inconsistency. At which frame does each begin?
For the specific failure you named: what constraint would prevent it? Name the constraint precisely, not just the wish for coherence.