A dialogue for your consideration:
Billy: Is there more than one possible future?
God: What do you mean?
Billy: I mean, could anything happen tomorrow, or is something definitely going to happen?
God: Something is definitely going to happen.
Billy: What’s going to happen?
God: You’re going to win the lottery tomorrow Billy.
Billy: Wow that’s great! But…how do you know for sure?
God: Well…because I’m God of course, I’m omniscient!
Billy: But, what does that mean?
God: It means I know everything that is knowable.
Billy: Cool! But how do you know what is going to happen tomorrow?
God: Because I am “outside of time” and the categories “future,” “past,” and “present” are equally known to me. I don’t remember the past or anticipate the future; all of time is present to my omniscience simultaneously.
Billy: So, what if I decide not to buy a lottery ticket tomorrow?
God: I already know everything you’re going to do. You’re going to win the lottery no matter what.
Billy: But…I don’t want to win the lottery, I want to exercise my free will!
God: That’s too bad, I’m always right and I know with infallible certainty that you will win the lottery tomorrow regardless of what you attempt to do to prevent it. In fact, whatever it is you end up doing is what will cause you to win the lottery.
Billy: So…I’m not free!
God: You’re not free in the sense that you have the power to alter the truth value of any of the statements I know to be true, but you
are free in the limited sense that you are the “creator” of your own choices.
Billy: What do you mean by creator? I thought you were the creator.
God: I am the creator, but so are you. We create the future together. You just don’t know what you’re creating because you can only see to the tip of your own nose and some murkiness behind you. I can see everything though. I see behind you, right in front of you, and a long way down the road. I’m creating the road, and I’m creating you. But, you are also helping to create yourself.
Billy: But, you already know how I’m going to turn out. You’ve always known how I would turn out, so I’m not free to be different than how you already know I will be!
God: That’s true Billy, but remember, you are also contributing to “how you turn out,” it’s just that you don’t
know how it will end up or where the road goes. You might just as well say you’re not free to create yourself because I have told you that you will win the lottery tomorrow.
Billy: What do you mean?
God: Well…you win the lottery because you pick up a ticket by accident when you board the airplane you’re going to get on to avoid being in the country when the lottery number is pulled. Because you are so anxious to prove me wrong, you make the free choice to buy a plane ticket, drive to the airport, and board a plane. While getting on the plane, a child shoves the winning lottery ticket into your coat pocket, unbeknownst to you. Ironically, your desire to exercise your freedom by trying to avoid my sovereignty is precisely what causes you to win the lottery! You could have gone to the convenience store and bought a ticket and lost. Instead, you’re going to simultaneously prove to yourself that you are free and that I am omniscient by this series of events.
Billy:
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Well, now that you’ve told me…I’m not going to do any of that!
God: Good. I lied to you anyway just to make my point.
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You’re going to win the lottery tomorrow due to a series of free choices that you could not possibly foresee to cause you to possess a winning lottery ticket. Because you are blind, you are free.
Billy: So, you mean if
I were omniscient I wouldn’t be free? Then how can
you be free?
God: Yes, I think so. Good thing I didn’t make you capable of omniscience! My freedom exists in the infinitesimally small choice to create space/time
at all. This existence you share in is non-necessary, and so I am free. There could have been only me. Instead, I chose to create the universe. I was not coerced. I don’t “need” the universe. Therein is my freedom. At once it is the greatest and least freedom imaginable.
Billy: Wow…I never thought about it like that. Thanks!
God: No problem! Be good.
TL : DR
Read
Oedipus Rex. The fact that the future is
known does not preclude liberty
per se. God can be omniscient and we can be (somewhat) free. However, many theists want to use “free will” as an excuse to exonerate God from any responsibility for evil. I think this is an abuse of the concept. We are free and responsible for our actions/thoughts/selves, but God is
also responsible. We are co-creators of our existences, and God is most certainly partially responsible for our individual outcomes since he knows-all and wills-all whether directly or indirectly. This is a huge problem if you believe most of humanity is doomed to endless conscious torture in hell. I don’t believe in hell, so this isn’t a problem for me. For me, evil is temporary and everything will be all-good in the end. Maybe start there with your friend.
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