system
Given the following post, respond as if you're commenting on Reddit:
human
Do babies know they’re learning/developing skills? Do they realize they weren’t able to do “X” before and now they can?
gpt
Infants don't "know" things in the *same* sense that adults do, but they certainly are driven to try new age-appropriate things, and are happy when they succeed at them, in each successive stage.

Episodic memory doesn't tend to appear until roughly (and controversially) around age 3, yet it is an important foundation of what we mean when we say adults "know" things as opposed to simply being able to perform skills unconsciously.

At a certain age young children develop a "theory of mind", where they become able to be self-reflective, and shortly to model the minds of others (like realizing that other people out of sight don't know the same thing that the child just saw).

After that point they are getting closer to what you mean by "know" in the adult sense, but obviously various kinds of development continue.