Viral. It used to describe how a high school student could create a Mono epidemic. One popular kid catches the virus and “somehow” some girls start yawning. Then other guys mysteriously feel lethargic. Soon, an entire school is talking about the outbreak. All from one kid. Now, in a similar manner, someone thinks up (or happens to record) an interesting video. Soon, like a miracle, the video is playing all over the world with millions watching it. No wonder why it’s called “viral.” This modern-day ability is caused by three converging factors: Video editing has become mainstream. In fact “Vine” (twitter’s 6-second video app) does it all by pushing and releasing a button. There’s video recorders in everyone’s pockets. No excuse of “I wish...