Realistic simulation in the virtual world

One after another company has been going to the virtual reality, or VR, business. Search VR on any domestic e-commerce platform and up to 1,000 devices will pop up, their prices ranging from 299 yuan ($46) to 30,000 yuan. Enter any shopping center and you will find many stalls offering VR experience.

But do not try the low-cost devices, because VR requires high-end software as well as hardware. If either is not good enough, you will have a bad experience.

Although it gained popularity recently, VR is an old concept. Pioneered by US computer "philosopher" Jaron Lanier in the 1980s, it gives you some virtual experience with visions. The trick is to deceive your eyes into believing what is displayed is true.