What did he mean by this?

That's quite a shallow reading of his work; fine for a first read, but you should read deeper for the second.

Couldn't you see his use of Zodiac as symbolism in the first arc?

He's implying that all knowledge is discursive, and requires the empirical study of numbers of dicks in his cereal. Too few, always too few.

And in this instance "his cereal" is a symbolic stand in for his wife.

talking on a level way way above Veeky Forums's head, as usual

>people unironically don't read Phenomenology of the Spirit, Being and Time, Speech and Phenomena, Gravity's Rainbow, Complete Works of Shakespeare, and Finnegan's Wake before diving into TFiOS
Shaking my damn head sempai

This.

"I did cocaine tonight"

Social media is dangerous to mix with false confidence.