system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why does a duvet cover in the washer eat all other items?

You know if you've ever washed a (open) duvet cover with a few other things. When the load is finished, all the things are inside the duvet cover and at the very bottom of it. Nearly always true. How come?
gpt
it's the same reason headphones get tangled in your pocket. there is random motion that means the clothes go in every possible direction, then there's a state that's hard to reverse. it's hard to untangle a wire once it gets that way and it's hard to pull a sock out of the duvet cover, so it stays. the longer it all tumbles the more stuff ends up in there. they probably do come out as well occasionally, but as long as each piece spends more time in there than it does outside then whenever you check most of the laundry will be in the cover.