Artificial nanomagnets: mechanical metamaterial named Chaco remembers order of actions performed on it

https://phys.org/news/2024-05-artificial-nanomagnets-mechanical-memory-capability.html

"mechanical memory with properties of magnetic memory... 3D building blocks initially arranged in incompatible ways impeding easy settling into ordered, low-energy configuration... encodes sequence of actions, of which each mechanical building block has 2 stable states, like single magnetic memory bit flipping 2 unis leading to 1 final state,,, reversing order leads to different final state (non-Abelian response)... observing final state retrieves information... memory storage, robotics, mechanical computing"