The idea, that we are in a virtual reality (VR), has been spreading more quickly since 1993. On the off-chance that this idea has not yet come to your attention, the details of it can be found at:
Wikipedia, overview
Simulism - Wikipedia, the free encyclopedia
Nick Bostrom, 2002
Are You Living in a Computer Simulation?
Brian Whitworth, 2007
New Scientist Technology Blog: The VR hypothesis - New Scientist

In addition to those logical sequences of thought, one way to explain the apparent fact that space and time and mass and energy are quantized would be to say that their quantization is a result of the fact that the 3-D monitor, in which our VR is displayed, has a finite spatial screen resolution, and a finite repetition rate.

However that might be, it remains true that known VRs are not self-originated. If they were self-originated, then they would be natural realities, that is, realities without an originator. It also remains true that known VRs are not self-sustained. If they were self-sustained, then they would have become natural realities which is a contradiction by definition.

Comments anyone?