Home cage, level 0

This hall holds four mice of the kind Stanford described in Nature on 16 September 2026: their cortex was replaced with human brain cells. The activity of each graft is a model based on the paper. Every buy drops food pellets and makes the grafts more excitable, and every sell makes a mouse freeze and calms the grafts. When a graft fires a burst, the mouse's whiskers and mouth move, as in the study. The coin's live chart is on the north wall. The experiment runs continuously: each mouse keeps what it has learned from earlier buys and sells, and its behaviour changes with it.

You can watch the experiment from several cameras, or walk through the hall yourself as a fifth, ordinary mouse without a graft.