Because I have seen every possible attempt to answer this question, from "it would interfere with our free will" to "everybody already knows".
I just want something 1. new, and 2. from your own mind (not the Bible).
An all-powerful being cannot, by definition, attempt anything.
Anything he wants to happen will happen.
I'm not sure if you worded the bolded correctly but I'll attempt to respond to the sentence below it.
God could force us to bow down and serve him. He could impose his will on us and make us do whatever he wants us to do. He could have invented us to be like robots. But that would mean that he is a dictator or a control freak. In that case, He wouldn't be the loving, humble, self-sacrificial God that we see in Christ Jesus who died in our place to reconcile us to himself because he LOVES us. Love cannot be forced. My understanding is that God allows us to reject him. He doesn't impose him will on us.
I personally believe that God created us because he wanted beings that he could love and receive love in return. I think he was lonely (not in the pathetic sense) and that's why when he created Adam and when He saw that it was not good for Adam to be alone, He created Eve. It is that love which can only be freely given if it is truly love that God desires and not praise and worship. Many Christians would scorn me for saying those things with numerous arguments. Oh well.
Yes, God can do whatever he wants to do but he is constrained by WHO he is, the type of Person he is that he doesn't.
Is that sufficient answer?...probably not.
If he knows what will convince me, why not do that?
I don't have all the answers. You sound like my older son. I can't even convince my son that God is real why would I possibly think I could convince you?
If he's up there right now, watching me, and knows what will convince me this very instant, what's he waiting for?
I have a somewhat open view of God's all-knowing which at the present I cannot articulate well but there are other Christians who can articulate it and answer difficult questions. If you are interested in references, I can provide those to you.
God is not only up there right now, he is with you right now where you are. He is omnipresent.
All I can say that makes sense to me is that he has and continues to reach out to you and everyone. You may have not perceived the attempts. He may have spoken to you in your mind with a thought and you pushed it away. He may have sent a Christian to talk to you and you resisted or rejected what they had to say. He may have allowed difficult circumstances to enter your life thinking surely these will cause him to reach out to me. Other ways would be dreams and visions.
If God did do exactly what you want, would you believe? Would that be enough evidence for you?
There were only good angels when God created them. They stood in God's presence all of the time but one of them became proud and wanted to be God. There was a war in heaven and those angels (1/3) who took Lucifer's side were kicked out of heaven and thrown down to earth.
Those fallen angels had all of the evidence that they could possibly want and still they foolishly rebelled against God.
I don't know what else to say to you as to why he doesn't show himself in a more obvious fashion. He expects Christians to live by faith. We have glimpses of him here and there but it's not like I feel his presence with me all of the time. That doesn't mean that he isn't with me all of the time.
Why is this not unreasonable?
Why does Paul get the live version, while I have to make do with two-thousand year old multiply-translated accounts from at least thirty years after the "fact"?
Awe. You can get the live version. Paul was a believer in God before he became Christian. He thought he was doing God a favor by destroying Christians who he felt spreading a false teaching about his God. God is merciful to us all because of our ignornance. If you want the live version, why not humbly ask for Him for a sign of his existence?
I don't know.
But that's not the point - your god, if he's real, knows what would cause me to believe.
I agree.
I don't need to know what would convince me, as long as he knows.
Ask him then.