We don’t see objects “directly” in some sense, we experience qualia of seeing objects. Then we can interpret those via a world-model to deduce that the visual sensations we are experiencing are caused by some external objects reflecting light. The distinction is made clearer by the way that sometimes these visual experiences are not caused by external objects reflecting light, despite essentially identical qualia.
I don’t disagree with this at all, and it’s a pretty standard insight for someone who thought about this stuff at least a little. I think what you’re doing here is nitpicking on the meaning of the word “see” even if you’re not putting it like that.
I’m also very curious about whether you get any other benefits from a larger liver other than a higher RMR. Especially because higher RMR isn’t necessarily good for longevity, and neither is having more liver cells (more opportunities to get cancer). Please tell me if I’m wrong about any of this.