1. a childhood game testing reflexes and cunning

2. the phenomenon, experienced while driving, of seeing a green in the distance and missing the red right in front of you

3. taking the long view and setting yourself to be blindsided in the interim

4. two of the three colors of light used to create projeced images, blue light is the third - these three light colors combined can create the entire visible spectrum as an illumination, i.e. your monitor