Flotsam and Jetsam
Usually conflated at the hip in matters literature, there is a difference.
Flotsam is floating crap that fell off a ship, or is from a shipwreck.
Jetsam looks identical but was purposefully jettisoned from a ship.
The nomenclature refers to legal rights of those who find this stuff, it’s different in the two cases.
Although just by looking at it, you can’t possibly tell if it’s flotsam or jetsam.
It’s a quantum problem.
PS, for the authors out there, correctly, it should be “flotsam or jetsam” because statistically it’s extremely unlikely to be both.
offshore westerly 