[music] [music] I want you to close your eyes for a moment and picture this. Imagine a bright sunny day. The sky is blue, the birds are chirping, and everything is just perfect.When all of a sudden, the sky rips open and hordes of alien life forms descend from the atmosphere, willing to kill, terrorize, and use all the resources at their disposal. How would this scene make you feel. Sounds surreal, doesn't it.Something out of a War of the Worlds movie. But this actually takes place inside our body every tim ...