There is some very important things you miss in this discussion.
If our standard model of physics is right we have a mesh on the fabric of spacetime at plank distance and plank time units.
Now consider a particle moving at an angle like 45 degree to the mesh ... this is the jaggies problem of computer graphics display (
http://en.wikipedia.org/wiki/Jaggies)
How does a particle pull off this trick of doing right angle jaggie movement on the plank time and plank distance fabric.
One view is thats why we have quantum mechanics because it has temporarily disappear off the spacetime mesh to come back again.
Another is the mesh is actually an illusion itself.
Ask any computer gamer who has played world of warcraft, rifts, or second life if you can have an illusion of 3D. If all you senses fed back in your visual illusion it would become hard to pick it from reality.
This problem goes back to the cave allegory from plato (
http://en.wikipedia.org/wiki/Allegory_of_the_Cave)
