Researchers at the University of Louisville have collaborated on an effort to bring artificial intelligence to the hardware level. Other participants in the project included Purdue University, the University of California at San Diego, Argonne National Laboratory, Brookhaven National Laboratory, and the University of Iowa.

One key to this effort was to incorporate artificial “tree-like” memory into hardware at room temperature, something that’s never been done before. A tree structure of memory is the way we humans learn, organizing information into branches to help us retrieve it later.

The team taught the material to learn the numbers 0 through 9. If counting to nine doesn’t sound all that impressive, consider that the ability to learn numbers is a baseline test of AI.