This brings up the whole question of pocket lint in general. I have long had concerns about pocket lint. It seems that every time I reach into my pocket for change, there's a little bug of lint there.

Where does it come from?
What is it good for?
Is it contagious, or self-replicating?
Where does it stand in the food chain?
Are there creatures who crave pocket lint?
Would they attack me to get it?
Am I in danger?
Do I need to worry?
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Knowing where you're going is NOT the same as knowing how to get there.