It's a fair question. I'm not sure that I need to have my mind blown. There's certainly philosophy I read where somebody will be writing broadly about a school of thought or a niche aspect. I think what I find dull about Byung-Chul Han is that he writes with the affect of gusto, but there is no insightful pay-off to match. There's nothing to grab on to, at least for me.
IMO this means that your internal "algorithm" is over-trained for novelty.
The truth, once discovered, ceases to be new. Does that mean the truth is not worth anything after an initial moment of discovery? Or (this is rhetorical, obviously), is it possible that the things that our mind tells us are worth pursuing/engaging and those things that are ACTUALLY worth pursuing/engaging are not always (or even OFTEN) commensurate?
The way I see it, engagement with concepts that you have fully understood is meaningless in that you’ll only marvel at your ability to understand things, rather then come up with a new insight from the engagement.
But most of the time, we don’t actually fully understand things, and intimately reflecting on something will often yield new facets, insights you didn’t have before, and deepen your understanding.
Maybe I didn't make myself clear enough. I read all kinds of philosophy (time permitting!) and it certainly doesn't have to be novel. However, when a philosopher adopts a rhetorical tone, I expect there to be some kind of catalyzing payload to justify it. Is that not reasonable?
I'd say truth is always being either discovered and recovered, and there's usually not too much difference. There's rarely anything new under the sun.
You can just use simple, gut-level curiosity to justify this. It's directly satisfying to check out things that look interesting. No rationality or neuroticism about truth necessary. I don't know why you're making new problems to torture yourself with.