Imagine that you are sitting on a bench in the Plaza de Mayo, Buenos Aires, Argentina. You are learning to play the guitar with a teacher you found online. The smells, sounds and people of the city linger in the air. “No, that’s the C chord. We’re trying to get to A,” his teacher tells him. Your ears tingle with recognition when you finally hit the chord and your fingers get tired from the pressure of the strings, even feel a little burned. The lesson is over and they agree to meet again at the same time, in the same place, next week. They separate and Buenos Aires falls into darkness, as if someone had turned off the lights. You take off the virtual reality headset and place it next to the television. You are back in your living room in…