I believe that this could be a form of simulation, but God (a higher being) is the ultimate creator of it.
Another theory that I used to think of was this....
How do you not know that everything in existence isn’t just made up in your brain? That the reality that you can touch, feel, hear, and see is the actual reality outside of your head? Your consciousness cannot escape from your head, brain, or skull. You are not capable of leaving your body. In theory, your brain or consciousness could be producing a simulation. Your brain could be simulating the very device that you’re reading this comment from. Your brain could have made up everything that exists to you, including the people that you know. Myself, your mother, and the guy you’re watching on tv could all be made up in your head. Your senses (touch, temperature, hearing, pain, pleasure, emotions) are already made up in your head, so why couldn’t everything else be, too? You could even be the ONLY thing to exist outside of your brain, but are unable to escape it and see the reality that you really are alone in a void of nothingness.
All I know is that I have a consciousness and something/someone (God) created that consciousness. Something cannot come from nothing. There has to be a higher being that created all of this.
Then dudes will ask “well who created God”? Time doesn’t exist with God. God is infinite and has always existed. God will exist for eternity. There is no beggining or end for God, therefore nothing could have created God. But God IS capable of creating and doing anything. That’s why God is God. That’s hard for the human to comprehend, but that’s that.
This may be my longest post ever, but y’all brehs brought up some intriguing topics.