The audience is living in a simulation

Explanation
In this theory, Maria's blog post "Are you Living in a Simulation?" is directed to the audience.

This presents the possibility that Maria is in the same realm as the audience and is pondering whether she is living in a simulation.

It also could be possible that Maria is the creator of the simulation. The audience who has achieved the ability to comprehend the idea that they are living in a simulation can now be shown the true nature of their reality.

There are other possibilities, as well.