I think being rigorous about definitions of things is good, kudos to the authors for that. I do think this is important for defining how we treat animals and AI

I think being rigorous about definitions of things is good, kudos to the authors for that. I do think this is important for defining how we treat animals and AIs. However, they seemed to pick something that obviously matches the criteria? This is a 100 page paper that comes to conclusions like "octopuses feel something like pain" and "declawing crabs is not fun for them". I think this framework would have been more interesting to apply to creatures where this is less obvious like tardigrades. I actually don't know if they meet criteria for sentience.