Proof that we're Living in A Virtual Reality

Definitive Proof 
That we’re living in A Virtual Reality
or That The World is Flat.

One of The Foundations of Einsteinian Relativity is that Light is Independent of All External Reference Points. You can’t race along side a Light Beam in Space or Measure its Relative Speed from a Fast moving Train or Spaceship.

Also; The Earth, Sun, Milkyway, Our Galaxy Clusters & The Universe; are all moving at quite Remarkable Speeds in Various Directions  all The Time.

Such that; Whenever you turn on A LightBulb or Pocket Laser Pointer; The Particles of Light shouldn’t be dragged along with The Momentum of All of these Large Bodies, as do Birds & Baseballs, Airplanes & Jump Ropers. 
Instead; The Photons of Light should Instantly & Measurably Veer Off their Straight Paths & Curve away from their Source Projector, Following A True Straight Path, as The Rest of Physical Universe Twists Around them !

Since this isn’t what we observe;
We must be living on a Stationary Flat Earth,
Gently paddling through a Universe on The Back of Several Elephants & An Enormous Turtle.