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Christianity relies on free will. Without it people cannot ask for salivation, rendering Christianity false.
So take your pick:
1) We don't have free will. Thus Christainity is false.
2) We do have free will. Christainity could be true.
Delayed choice quantum eraser experiments tell us that certain quantum phenomena operate outside of what we traditionally think of as time.
https://en.m.wikipedia.org/wiki/Delayed_choice_quantum_eraserDelayed choice experiments raise questions about time and time sequences, and thereby bring our usual ideas of time and causal sequence into question.[note 1] If events at D1, D2, D3, D4 determine outcomes at D0, then effect seems to precede cause. If the idler light paths were greatly extended so that a year goes by before a photon shows up at D1, D2, D3, or D4, then when a photon shows up in one of these detectors, it would cause a signal photon to have shown up in a certain mode a year earlier. Alternatively, knowledge of the future fate of the idler photon would determine the activity of the signal photon in its own present. Neither of these ideas conforms to the usual human expectation of causality.
• Orch OR theory posits that conscious arises from quantum computations in brain microtubules.
• As noted by Kant in his model of a noumenal self free will requires a true self that is independent of time.
• Grounding consciousness in quantum mechanics provides this independence.
Therefore we have free will.
Quantum is complex probability. Probability needs to be confirmed by other science because probability can be used to determine anything any which way... even the probability of quantum usage strength or quality.
Experiments directed to cause a change in causal sequences are causal sequence changing experiments. Even if all they are designed to do is to show the change, they are still causing cause and effect to act differently that they normally do.
The tiny pip of free will that man has, does not of itself act on the things that people do or think. It simply gives God direction to adjust the lives of people in the ways that He wills. The results of mankind's free will are directed entirely by God, generally through cause and effect. Free will in the sense that man is free to do what he wants is non-existent. All is dictated by God through cause and effect, except in a few instances where God uses direct miracles for His own purposes.