Saw this in an old attic today, I could not get very close to it due to garbage etc.
spiders?
Looks like old Insulation , did you check whats under the insulation
yes, it looks like insulation but what moved it up to the roof sheathing?
Wind or when they installed it could be many things
Why is there and elephant crawling through that rafter?
insulation probably been there since install
Michael, the answer to your question is a simple one. Because he wanted to get to the other side.
I bet Micheal does well with flash cards too