The future of training is high tech. Companies like Walmart, Fidelity Investments, and Accenture have taken steps back from traditional classrooms and web-based, click-through modules to help hone their employees' skills and have instead begun looking at the utility of virtual reality as a training tool. “This is what pilots have been doing for 50 years. You fly the plane without flying the plane,” said Derek Belch, founder and chief executive of Strivr, a VR-based immersive-trai