I must confess, the first time I heard Google's virtual reality headset was made using a cardboard, I said to myself ''this is the funniest joke of all time.'' But, as it is, I was wrong. With Google cardboard, you and I are beginning to understand what virtual reality really is. All you need to have a feel of virtual reality is an Android smartphone and $25 to spare(that is foe buying the DIY VR kit) Watch video...