This week's Question: New virtual reality technologies were revealed at this month's Game Developers Conference in San Francisco, including the HTC Vive from game developer Valve Corporation and smartphone maker HTC. Vive uses lasers, sensors, and controllers to track motion in 3D space. The 1200 x 1800 pixel duo screen headset enables users to experience a virtual world while also reacting to it physically. According to the companies, the screens also "eliminate the jitter common with previous VR technologies." Other VR competitors exist, including Facebook's Oculus Rift Crescent Bay and Sony’s Morpheus 2015 prototype. The consumer version of Vive will be released at the end of 2015. What do you think? Will 2015 be the year that virtual reality goes mainstream?