I don't typically give up. I mostly read non-fiction, so I always wait to see if there's something for me past page 200.
I gave up on "Foucault's Pendulum". I started it as a teenager and obviously it was way above my league. I still want to pick it up again at some point in the future.
I also passed on "Postmodernism, or, the Cultural Logic of Late Capitalism", because I couldn't even understand the introduction.
I'm originally from Spain. I know very well these messages from our bubble (which exploded --sort of-- around 2007 - 2008). "House prices can only go up because X".
Then, for whatever reason, Y happens, and it turns out that Y >> X.
I know how this ends, and it's not pretty.