The Madness Place-Like we said before, pony brains are amazingly compact, and they have an amazing amount of sapience for their size.  The problem is…you don’t get something for nothing, and ponies have an issue with their brains going weird on them.  This problem isn’t exactly confined to unicorns, whom have some of the greatest number of sufferers.  Earth ponies, then pegasui have occasionally gone spare this way, as well.

So far, there hasn’t been any alicorns with this issue, but everybody worries what happens when it does.