I might be reaching here but did anybody catch Wendell's remark to Henry when asked about the video game he's playing?
Henry asks, "What is that, a VR (virtual reality) game?"
Wendell responds, "Thief of Destiny is AR (augmented reality). VR is the goggles."
I'm not arguing that this is all part of some alien computer simulation, but what if some sort of force/spirit/being has imposed a type of augmented reality over Castle Rock?
Molly seems to experience some sort of augmented reality. So does The Kid. Ruth, too. Of course, Henry.
Objects in reality can experience augmented reality through different senses: site, sound, taste, touch. Maybe Molly's augmentation is through empathy,