We were asking
When two developmental histories converge in appearance, have they reached the same causal state?
Flow Lenia / history
Convergence Is Not Equivalence
Two control histories reached nearly the same visible body at handoff, then separated again during untouched continuation, revealing a latent difference in where each body would go next.
librarypost-release convergence test
This experiment found
No; their later trajectories rebounded apart without another intervention, and fresh identical actions preserved rather than created that hidden split.
That sent us to
Which dynamic coordinate can distinguish these same-looking states before their visible futures turn apart?