Gnomon might be my favorite book ever. It’s one of those books where the first time through it’s disjointed and almost seems like a collection of novellas, then the second read you see the connections from the beginning and it all makes sense, and reads 3+ reward with really deep semiotics and structural parallels that I can only describe as fractal.
So Harrison aside, if you find yourself without reading material at some point, I’d really encourage giving it another try. It’s certainly abstract, but there is incredible depth and coherence throughout.
I loved Gnomon. It's not complexity or depth that bothers me in Harrison's work, it's the apparent lack of it, just meandering weirdness.