Seeing how some of my recent orders have been packaged, I have my doubts.
But there definitely seems to be some algorithmic packing going on. Here's an example that piqued my curiosity:
I just received two bulk DnD miniature sets, a small 3-pack of wolf miniatures, and 2 packs of silicone rings. The miniatures and the rings were ordered in separate carts on different days, but arrived on the same day.
The bulk miniatures showed up in one package (not surprising), but the wolves and ONE of the ring packs were packaged together. The last ring pack came in its own package.
Clearly whatever their algorithm is, it's calibrated to avoid "overstuffing" packages. But why not group like things together? Why put the rings with the wolves?
If anyone has insight into why Amazon's algorithm would do this, I'd love to hear about it.