The ostrich has the lowest brain-to-bodymass ratio of any living bird. An ostrich eye is actually larger than an ostrich brain, and less than a third of their (very small) cranial real estate houses brain.
And yet, no ostrich has ever written an opinion piece about how Claude is conscious and has a soul.
Koalas' brain cases are only about 40% full of brain, the rest is fluid and fatty tissue. Their brains themselves are completely smooth, lacking most of the cortical structure normally associated with higher cognitive functions in mammals. A crocodile's brain is more highly structured than a koala's, and there are lizards that outperform them in problem solving and learning ability. They understand context so poorly that they don't recognize an eucalyptus leaf as food if it's been plucked from the branch.
But no koala has ever claimed that filling static floating-point numbers into a high-dimensional matrix is just like how a human child learns.
@datarama You might wonder "how did the koala get so stupid??? Isn't evolution about survival of the fittest??" and yeah but in this context "fittest" means "most fit for its ecological niche" not "smartest/strongest/whatever".
Intelligence costs energy and eucalyptus doesn't provide energy but it is abundant. (I think there are a couple of other niche advantages of eucalyptus but can't quite remember what they are, probably that it's not really used by other animals or something). Evolution's "solution" (insofar as any of this is goal directed, which it isn't) is to reduce the energy consumption of their brains to the bare minimum... so the smooth brain and lack of higher cognitive structure is actually an evolutionary adaptation. The side benefit, of course, is not naming your fake robot girlfriend "Claudia".
Humans, meanwhile, with their fully-wrinkled brains, have invented multiple kinds of tech that threaten to wipe out most life on Earth, including themselves.
@brib The main advantage of eucalyptus is that it's poisonous. The oil is lethal to most animals even in small amounts.
@brib In general, and on a species level, animals tend to be as smart as they need to be. Brain matter is a terribly expensive energy sink.
I poked a lot of fun at the comically small-brained stegosaurs yesterday, but they were obviously smart enough to get by. They just walked around hoovering up ferns and cycads, and occasionally bashed an allosaur's face in with the thagomizer. They were around for about 10 million years, which is a pretty respectable evolutionary tenure.
A question I've sometimes been asked is why elephants are so smart when stegosaurs were so dumb. They have a lot of superficial similarities: They're slow-moving herbivores who mainly protect themselves by being enormous and having access to some scary pointy implements. But elephants have trunks they can use to manipulate objects, and that tends to select for co-evolving a sophisticated brain - and also, elephants are highly social, and need to be able to understand rather complex social dynamics. Also, a modern-day African savannah is a much more complex and dangerous place than a Jurassic floodplain: A stegosaur never had to face a cooperating pride of lions or a gang of cunning hyenas (both of which absolutely will attack vulnerable elephants). Elephants have to deal with water scarcity, and their energy requirements are estimated to be around three times higher than a stegosaur's.
An elephant is a lot smarter than a stegosaur *because it has to be*.
(Both elephants and stegosaurs encountered crocodiles, though. How's that for evolutionary tenure?)
