tHE BRAIN IS TWO THINGS NOT ONE!!! TWO SEPARATE ORGANS!!!! This is apparently huge for studying things like ALS and other hindbrain disorders/conditions because previously we just weren't able to properly grow hindbrain cells because we were effectively trying to ask one cell to turn into a completely different one (it did not like to be asked this) https://med.stanford.edu/news/all-news/2026/09/two-separate-brains.html