A poorly lit corridor, stretching on as far as the eye can see.
Unmarked doors line both walls. The lights above flicker in irregular patterns.
Behind each door is a person. An event. A choice.
In your hand is one key. A key to one door of your choosing.
Opening one door allows you to experience what lays beyond, at the cost of what lies behind the other doors.
It is impossible to know exactly where each door will eventually lead you. The light is too dim to see.
You can stand in the hallway and choose nothing. To gain nothing, and to lose it all.
Whatever your choice, you soon find yourself in the hallway once again.
Every moment of your life.