Norton’s review published on Letterboxd:
To be fair, you have to have a very high IQ to understand Tenet. The science is extremely subtle, and without a solid grasp of theoretical physics most of the intricacies will go over a typical viewer's head. There's also Protagonist's confident outlook, which is deftly woven into his characterisation- his personal philosophy draws heavily from Einstein's Studies, for instance. The fans understand this stuff; they have the intellectual capacity to truly appreciate the depths of this film, to realise that it isn't just intelligent- it says something deep about LIFE. As a consequence people who dislike Tenet truly ARE idiots- of course they wouldn't appreciate, for instance, the brilliant writing in Protagonist's confident catchphrase "I am the protagonist" which itself is a cryptic reference to Stephen Hawking's epic "A Brief History of Time". I'm smirking right now just imagining one of those addlepated simpletons scratching their heads in confusion as Christopher Nolans's genius intellect unfolds itself on the theatre screen. What fools.. how I pity them.