“Comparing and contrasting paragraphs” has an extremely limited scope and it’s not a general intelligence.

An AI doesn’t know something “makes sense” or “looks good” because those are subjective experiences that we have yet to understand how it works. And what “makes sense” to us is a subjective experience where it has no guarantee that it actually does objectively make sense. What made sense to us 100 years ago may be complete nonsense today or tomorrow.

If 1000 humans are playing around with 1000 random generators, humans can eventually figure out what is “gibberish” and what might “make sense” or “sound good”.