There is also something of a question if Universe 25 actually collapsed, or what happened in the previous 24 universes. Calhoun never published anything besides

There is also something of a question if Universe 25 actually collapsed, or what happened in the previous 24 universes. Calhoun never published anything besides popsci summaries of his experiments: https://www.gwern.net/Questions#mouse-utopia https://www.gwern.net/Questions#mouse-utopia