Disavantages Of using VRDs

In the entertainment industry it would be hard to sell VRD systems to home users because of 2 main reasons:

1. Cost: VRD would be cost much more than a television, even a very nice television. Therefore, VRDs would be sold to either just the social "elite" or people who value their entertainment enough to spend a large amount of money.

2. Laser Beam: Although VRDs are believed to be safe for the human eye, according to Wapedia, it would extremly difficult to have people buy a unit that literally shoots a laser beam directly in their retina because people would fear losing their vision.

3. Limitation: Up to today VRDs have only been able to user red laser beams, which limit the colors a user can user to red. This will remain the same until the VRD system will be able to incorporate green and yellow lasers in its projection technology. ( information taken from Ryan Block)

For military purposes, the VRD might cause greater disavantages than it does advantages:

1. Cost: it would be expensive to retrain pilots to fly their plain from the controls of a VRD system.

2. Reliability: we often hear pilots say that no machine can replace their instincts, only time would be able to tell if pilots would be able to trust their instincts while using VRD as if they flyng.

3.Security in an indirect way the planes are more vulnerable because an enemy can gain intelligence to hack into the military computer and he would than be able to control the planes.

And finally for the use of operations, the VRD will also have some limitations:

1. Constancy: What would happen if a power failure would occur in the middle of an operation? or if a computer glitch makes the robot malfunction? Most likely it would result in a fatality.

2. Trust: It would be hard for both the doctor and the patients to trust the technology. Would you trust a doctor you never met to operate on your heart? Would you have the guts to allow a machine cut your chest open? I know i wouldn't! (for more information on operations and VRD)