I'm new to metaphysics. So, I apologize if this is an established question.
I've been asking the question, could reality be a projection of another reality?
In geometry, you can project a three dimensional object onto a two dimensional plane.
You can debate whether the images in the two dimensional plane are real or an illusion. However, the primary issue is that points that are connected (or near by) may appear disconnected (or distant) and points that appear connected (or near by) may be disconnected (or distant).
This can be generalized, to allow projection onto three dimensional space and time. And it can be further generalized if we allow non-Cartesian geometry.
If we assume that there are chains of events, then such chains could weave in and out of space and time, closely connecting people and events from completely different places in the world over completely different time periods.