Response to Jenna's "Butterfly Effect"

I believe that Jenna proposed an interesting concept, the Butterfly Effect, to use alongside free will and determinism.  However, I believe the entire concept of the Butterfly Effect can only work in a world of free will and determinism.  If we were to believe that free will is true, then, in coexistence with the Butterfly Effect, everything that we CHOOSE to do will have an effect on the determined future of what WILL happen.  The entire idea of having a world of free will and determinism is fascinating but always leads to a dead end, in my opinion.