Through what's prefaced with an insecure humblebrag and largely feels like a vanity project disguised as a neurotic's spat with his ideologies, Fowles manages to:
1. Argue that inequality is a necessary and natural force in the world but also that wealth inequality is bad and should be "evolved" away from
2. Tie self-discovery to anti-statism while using the randomness of circumstances that leads to inequality to promote decreasing wealth inequality, somehow
3. Analog societal "evolution" to a spinning top because there is nothing to "evolve towards," while also proposing a social structure based around leisured learning towards which to evolve
4. Distinguish between Capitalism's "unfair free" society and Socialism's "fair unfree" one as if this were an aphorism and not a jumble of loaded words
5. Describe Socialism as a system driven by envy and Capitalism as a system driven by happiness (speaking of loaded words) which each fulfill psychological demands and need one another - as if this didn't already sound enough like Peterson's chaos dragon/walled garden nonsense binaries
6. Posit that "the male and female are the two most powerful biological principals" (speaking of Peterson's nonsense binaries)
7. Coin the term "nemo" to describe an "anti-ego" in Freudian psychology equivalent to anti-matter in physics - outside of the non-clarity of positing that (as Fowles does) flat earthers refuse to believe evidence because they have created a self-structuring belief to fend off non-being in resistance to the self-destruction of being the lesser in a perceived hierarchy while also claiming, again, the inevitability of inequality - is a weird word to imply you regularly use by claiming it forms a fundamental aspect of your worldview
8. Make understanding him more difficult by regularly use words like "inequality" and "evolve" in aggressively singular ways
9. Call the then developing Buddhism in the west "Lamaism"
10. Defend population control policies without evidencing overpopulation being an issue
11. Claim a universal language is needed that has "phonetic spelling," is adaptable and basic, and is "analytic, not synthetic." Coincidentally for this English writer, it's English, an already almost global second language - totally not because of the utility of learning an imperialist hegemon's language (or being forcibly taught it), by the way, no, but because "it is the best tool available"
12. Write "Because I am a man death is my wife; and now she has stripped, she is beautiful, she wants me to strip, to be her mate....she wants me to make love, not like some man-eating spider, to consume me, but like a wife in love, so that we can celebrate our total sympathy, be fertile and bear children" (Bro, you just posted cringe)
The longest blog post to be printed as an actual book was published in 1964, and then republished in 1970. Some might call it a clever take on autobiography and brave for its forthrightness. Maybe this performing of self is both those things. Yet no matter how much I agree with his politics (there are cross-sections) I found The Aristos to be posturing and evasive, its refusals and obstinacies exactly parallel to the flat earther in his above example, full of many ideas about life and no life. In Fowles' own words:
"All inner-feeling thus becomes a disguised form of the self-portrait. Everywhere the artist sees himself as in a mirror. The craft of the art suffers; craftsmanship even becomes 'insincere' and 'commercial.' Even worse, in order to conceal the triviality, banality, or illogic of his inner self, the artist may introduce deliberately hermetic and ambiguous elements into his art."
TL;DR: Read Sheila Heti's How Should A Person Be instead. It's probably what this book was when it was originally published, and will likely age about as well.