The Fluff in my Dryer

Do you every wonder about all of the lint in your dryer? Sometimes I wonder why after all of these washings and dryings, I have any clothes left. Maybe it is because on nicer days and in warm weather, I hang my clother on the clothesline in my back yard.

There is nothing that smells better that sheets dried on the line. They may be a little crisper than drier sheets get them but I am for crisp, fresh smelling sheets.

Back to the lint. Webster explains it like this:

Lint (n) 1. a staple cotton fiber to make yarn. 2. minute bits of ravelings or minute shreds of yarn; bits of thread. 3. cotton waste product from ginning. 4. a soft material for dressing wounds.

In all of these definitions, I do not see what defines the fluff in my dryer. Maybe cotton waste from Drying??? Or maybe it is the waste from the washing. I know this is rediculous to even wonder about but my mind if just about that stable today.
I really do wonder when my favorite jeans, that are only 4 years old, are going to be completely gone in fluff.

If I would save all of the lint waste in the dryer from drying jeans would I be able to make another pair if I would weave it into new fabric?

I certainly wouldn't want to use it to dress any wounds. I think it would not hold together.

I think the best use for it is to start the fire in the fireplace or let the birds line their nests with it. What do you think?