Can Senet beasts learn? They're static in their condition, aren't they? Given that, I understand how Uaid was coded to recognize Quiggs and Matty (because he has the body of a Senet beast, but his mind is a pymaric); but others like Water Women, sentient snakes or Tittybird shouldn't be able to form memories if they're Senet beasts, correct?
Mostly incorrect. Senet beasts don’t age but they’re not physically static. They can learn. They have minds and physical systems but they are not systems subject to the biological and physical properties common to the rest of current reality. They are worlds unto themselves, with their own isolated kherts that arbitrate their own, often utterly unique sets of laws. Some senet beasts have to eat or they starve. Others don’t have to eat at all. Some die if they spend too much time out of water. Some senet beasts, like stormbringers, actually cannot form long term memories as their minds weren’t set up to do so. Their female counterparts the waterwomen, on the other hand, have excellent memories and assume the role of looking after the flighty males. Some senet beasts are little more than very sparkly bugs. Others are easily mistaken for gods. And still others can vomit red human forms out of their bills and chat existentialism with you. They are pretty diverse!
But the senet beasts that are still alive now are the last, and a vast crowd of creatures did not make it this far. They were killed by humans or they killed themselves in despair or insanity, unable or unwilling to adapt to entropy and time.