For example, I've been reading in depth about reverse engineering lately and improving my web h4ck1ng skills by playing CTFs. And every night before bed, I read philosophy to stay sane. I'm currently reading "Negative Dialectics" by Theodor W. Adorno.
What about you?
Homology theories are very beatiful, and I do want to recall the topic of de Rham cohomology.
EDIT: autocorrect can't distinguish between words 'homology' and 'cohomology'.
it starts out so beautiful but it can get so .... twisted https://ncatlab.org/nlab/show/twisted+cohomology