Are There Virtual Limits?

In the virtual world, you can't actually cut metal...

...And you wont get splinters in your eye because you forgot your safety glasses.

In the virtual world everything is exactly as programmed by the programmer(s) which will normally include some biases. There will always be unpredicted (unpredictable?) inputs and outcomes. This is especially true with systems having human involvement, where the affects are often related to individual body mechanics and personality characteristics, not to mention plain dumb luck.

When designing a system for human use or interaction where perception is key, virtual only gets you close, sometimes very close. Then you have to put real people in real contact with real product to verify what the virtual world predicted.

There are limits to everything in the real world. The virtual world is trying to emulate the real world, but as all engineers know it never completely succeeds. So the virtual world will not only have the anticipated limits of the real world, it will also have its own limitations. It's a good thing for programmers that the advantages of starting a design in a virtual world out weigh the limits of a virtual world.