Wicks

How is it that the Geometers can simultaneously be affected by the Arbre causal domain and also travel to it? Is this not violating cause and effect, which is to say creating a circular flow in the wick system of calca 3?

Jad (surely as close as we have to a fully reliable source of information) says during the climax that "There is no taking, and there is no back[,] [o]nly going, and forward."

Is time the get out of jail free card here? You CAN move upwick because the passage of time prevents cause and effect loops, so actually the final wick diagram in Calca 3 is still missing some generality?