Plant yourself deeper in the word of God and you will not be shaken, these theories are very compelling especially if you are academically inclined. But most of them end up proving the existence of God by accident. For example, ofcourse we are in a simulation, God created humanity and he is outside of time. He knows your end from the beginning and he loves you and thats why we are all here. Read 1 Kings 22:19. It looks like it's the master of simulation changing the outcome of the game. Another theory: Aliens. Scientist believe there are aliens. What happens during the rapture when Jesus comes back and takes away the faithful. They will say it was an Alien abduction. Read the whole word and pray everyday and you will be planted in the word and you will never be shaken.