I faced down three attackers in my living room last night. I used a knife on the first one, grabbed his pistol and fired on the second, then stole his shotgun to take out the third. A message appeared in front of me indicating I had completed the level. This encounter was happening inside the virtual reality game Superhot, which I was playing with my Quest 2 head-mounted display. I was able to string together this chain of impressive maneuvers because I was immersed in a world where time wor...