yconst

>Our brains have this giant section dedicated to nothing but recognizing characters in our native written language. Sure we have a lot of brain power going to shape recognition in general, but character recognition is so incredibly trained in our heads that it should be our go to.

Yea, but you still have to read them, i.e. focus this "machinery" on a single word/sentence. So you're working in sequence when trying to identify a bunch of unrelated labels. On the contrary, you can probably differentiate an entire group of icons just by a glance in their direction (provided they are appropriately designed, of course).

Plus reading speed is pretty much the same no matter how many times you repeat the task. Recognition on the other hand improves with repetition.

If you're using only text, you're pretty much stuck with being able to differentiate your icons either by location or by actually reading them. Icons add another component to this.

Totally agree with the color-related comment though.

IANANS btw, so your mileage may vary.

Interesting point. However, I'd like to argue that there is a fine line between the conventional definition of a utility function and the ability of an organism to survive in an environment. The latter is truly open-ended, and not really externally imposed, i.e. different animals/people fare throughout life "optimising" completely different functions (closure?). A quote from a Kozma paper comes to mind: "Intelligence is characterized by the flexible and creative pursuit of endogenously defined goals". I believe this quite well summarises the open-ended nature of the task at hand. As I understand it, indeed, goals, rewards, risks, hazards, they are all in the game and shape the decision-making of the agent, it's "policy". But the way they are formalized for each individual and situation, well, is probably subject to constant redefinition itself.