It seems comparable, I mean, to any given case of breaking the law because it makes life a little easier or more pleasent.
And what of it? You're pointing to a general category with the implicit assumption that everything it contains is wrong. Which, as you know, isn't true. Perhaps most of the members of this set can be classified as wrong, but as long as wrongness isn't a general feature of this set, membership of this set isn't a sufficient condition to classify anything as wrong. Ergo, the members of this set that are wrong, aren't wrong because they belong to this set, but are wrong because they meet some other criteria of wrongness. You should think about what those criteria are, and then we can debate whether this particular issue meets those criteria.
Copying a book illegaly ... seems ... plausably comparable (morally if not legally) to theft.
As I and other people have pointed out, it's not even morally comparable to theft. You haven't addressed any of those comments as far as I can tell. I'll go with the charitable interpretation and assume what you mean by 'comparable' is what you're saying in the next sentence (the part I responded to in the first part of this comment).
And what of it? You're pointing to a general category with the implicit assumption that everything it contains is wrong. Which, as you know, isn't true.
Well, I agree that not every case of breaking the law is immoral, but I think I'd be happy to defend the claim that moral wrongness is a characteristic of the subset of legal violations undertaken for the sake of one's personal convenience. And your point about set membership doesn't seem right: it is in virtue of membership in 'elephants' that an animal has a trunk, even if its true of some elephants th...
See also: Twelve Virtues of Rationality, The Meditation on Curiosity, Use Curiosity
What would it look like if someone was truly curious — if they actually wanted true beliefs? Not someone who wanted to feel like they sought the truth, or to feel their beliefs were justified. Not someone who wanted to signal a desire for true beliefs. No: someone who really wanted true beliefs. What would that look like?
A truly curious person would seek to understand the world as broadly and deeply as possible. They would study the humanities but especially math and the sciences. They would study logic, probability theory, argument, scientific method, and other core tools of truth-seeking. They would inquire into epistemology, the study of knowing. They would study artificial intelligence to learn the algorithms, the math, the laws of how an ideal agent would acquire true beliefs. They would study modern psychology and neuroscience to learn how their brain acquires beliefs, and how those processes depart from ideal truth-seeking processes. And they would study how to minimize their thinking errors.
They would practice truth-seeking skills as a musician practices playing her instrument. They would practice "debiasing" techniques for reducing common thinking errors. They would seek out contexts known to make truth-seeking more successful. They would ask others to help them on their journey. They would ask to be held accountable.
They would cultivate that burning itch to know. They would admit their ignorance but seek to destroy it.
They would be precise, not vague. They would be clear, not obscurantist.
They would not flinch away from experiences that might destroy their beliefs. They would train their emotions to fit the facts.
They would update their beliefs quickly. They would resist the human impulse to rationalize.
But even all this could merely be a signaling game to increase their status in a group that rewards the appearance of curiosity. Thus, the final test for genuine curiosity is behavioral change. You would find a genuinely curious person studying and learning. You would find them practicing the skills of truth-seeking. You wouldn't merely find them saying, "Okay, I'm updating my belief about that" — you would also find them making decisions consistent with their new belief and inconsistent with their former belief.
Every week I talk to people who say they are trying to figure out the truth about something. When I ask them a few questions about it, I often learn that they know almost nothing of logic, probability theory, argument, scientific method, epistemology, artificial intelligence, human cognitive science, or debiasing techniques. They do not regularly practice the skills of truth-seeking. They don't seem to say "oops" very often, and they change their behavior even less often. I conclude that they probably want to feel they are truth-seeking, or they want to signal a desire for truth-seeking, or they might even self-deceivingly "believe" that they place a high value on knowing the truth. But their actions show that they aren't trying very hard to have true beliefs.
Dare I say it? Few people look like they really want true beliefs.