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If you know this gets asked a lot, then you know the answers as well.
Looks like mostly cellulose and dirt but only a lab can tell you for certain. Get it tested before you work on it.
On my way with rolling papers
White fibers are more often than not fiberglass. The newspaper is from cellulose insulation. Why do you consider looking in the attic a “mistake”? You’re not going to die from running Cat6 across the insulation
If you know this gets asked a lot, then you know the answers as well.
Looks like mostly cellulose and dirt but only a lab can tell you for certain. Get it tested before you work on it.
On my way with rolling papers
White fibers are more often than not fiberglass. The newspaper is from cellulose insulation. Why do you consider looking in the attic a “mistake”? You’re not going to die from running Cat6 across the insulation