Reality is a consciousness hologram. Inserts or markers on the timelines create change within the algorithm of the simulation. For example things that spike the grids like wars, cataclysms, or perhaps things that are more personal to you, affect change in perception and allow the hologram to continue.

Let's say we're looking at archaeological discoveries in areas such as the Giza plateau. For years they can dig and dig around the Great Pyramid and the two pyramids adjacent to it that create the geometry of the area - concluding they have found everything that could be found. Then one day an archaeologist, or team of archaeologists, make a monumental discovery in an area that was already excavated. That find was a new insert in the hologram.

9/11 was an insert in that it triggered consciousness that we are entering the final stages of this reality experience.

In truth our experiences here are all inserts in a hologram through which we experience vicariously. As the years pass or more people understand the nature of reality and their experiences here.

The concept of God and aliens are also inserts in the hologram.

Inserts are busywork we are program to experience. More often than not they keep focused away from the greater truth about reality being an illusion set in time to experience emotions.

As the hologram ends there they will be inserts to trigger the memories of those program to understand .. Computer End Simulation!