I've tried watching it about 5 times and get to different points before I burn out.
It has sparked an interest in the works of R.D. Laing for who Lain is named in reference to.
A Psychologist who was active in the 60's and is famous for their work with schizophrenics; I've been curious if their work may give a bit more context to understand Serial Experiments Lain
Gotta ask have you been in school in the past 20 years?
I'm not sure if any state school has lessons divided by gender aside from P.E. and possibly some Sex Ed lessons...
Gender division in schooling was certainly a thing in the 70's and probably the 80's.