At a busy airport a conveyor belt stretches from the runway, where all the planes land, to the baggage claim area inside the terminal. At any given time it may contain hundreds of pieces of luggage, placed there at what we may consider to be random time intervals. Each bag has two neighbors, one of which is nearer to it than the other. Each segment of the belt is bounded by two bags, which may or may not be near neighbors (to each other.)

On average, what fraction of the conveyor belt is not bounded by near-neighbors?

Example:

----- belt segment bounded by near neighbors
===== belt segment not bounded by near neighbors

## Question

## bonanova 85

At a busy airport a conveyor belt stretches from the runway, where all the planes land, to the baggage claim area inside the terminal. At any given time it may contain hundreds of pieces of luggage, placed there at what we may consider to be random time intervals. Each bag has two neighbors, one of which is nearer to it than the other. Each segment of the belt is bounded by two bags, which may or may not be near neighbors (to each other.)

On average, what fraction of the conveyor belt is not bounded by near-neighbors?

Example:

----- belt segment bounded by near neighbors

===== belt segment not bounded by near neighbors

... --A-----B==========C---D--------E=============F---G-H---I-- ...

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