Satoru and Suguru’s Double Moment (a.k.a. their different reactions to what happened to them in the Hidden Inventory/Premature arc)
Let’s start with Satoru.
He thought he had everything under control (after all, he’s been treated since birth as a prodigy and already believes himself to be one of the strongest around), especially because he stretched his limit (and exhausted himself) for two days by keeping his technique active non-stop, to then get ambushed in the exact moment he finally lowered his guard. Even after this, he was still confident he could manage Toji and whatever he could throw at him.
But his opponent had read him very well, understanding precisely what his weakness was and used a super amazing and useful weapon that neutralised Infinity, allowing him to kill Satoru (almost).
Only the latter's resilience in focusing deeply on finally mastering RCT managed to pull him back from death’s door. When Suguru started to take the blame for what happened, he said “No, *I* messed up.”, taking full responsibility for the tragic outcome the mission had.
His automatic response, which was very pragmatical imo, was becoming stronger, because this way he could do it all by himself: attacking, protecting, and, most importantly, no one could ever take him again by surprise.
He got ultra defensive, with him deciding to keep Infinity on almost all the time, a thing that would be deleterious for anyone, so much so that he learned to keep his reversed cursed technique on as well, healing the damage this practice could do to his brain. A response to that event often overlooked but in my opinion very extreme.
We also know that he sleeps 3-4 hours a day presently, so here’s the thing: if he didn’t have a very good control of his cursed energy and hadn’t learned RCT he would have not been able to keep this up at all. He has been wearing himself out constantly since he was 17, patching himself up just to get consumed all over again in an endless cycle, and covering this up with his upbeat a silly attitude (which I think is not really him playing dumb, he really is like that).
Now let’s talk about Suguru.
He saw Riko, an innocent that was placed under his protection, get killed in front of him, in the exact moment she had decided that she wanted to keep living with the people she loved no less.
He couldn’t do anything to stop this from happening, then got defeated pretty easily and spared because his opponent didn’t want to take a chance with his peculiar technique that made him (maybe) a “safety hazard” (the idea that he was given a different treatment just because he’s deemed “unsafe” makes my head spin gotta be honest), and, according to Gege, he “absorbed” the notion of non-sorcerer=monkey from what Toji said after defeating him. So maybe he also linked his condition (his cursed technique) that put him in a position he doesn’t like (his main cause of stress is absorbing curses) being given to him by his parents (Toji says to him “Be sure to thank your parents [for giving you your blessings].” while having just stated that he’s too afraid of killing him because he might be dangerous… Not really what I imagine a blessing doing).
But the key thing in all of this mess is one though: the fact that he witnessed a 13-years-old getting shot in the head by a (technically) non-sorcerer, and then also seeing an entire crowd of normal people clapping and rejoicing about it…
That alone was what put him in an uncomfortable position where he constantly questioned his role as a protector of the weak, since said weak proved to be unworthy of compassion and help.
Then came Yuki, casually telling him that sorcerers don’t produce curses and instead of shutting off his suggestion to kill them all to avoid spreading more curses, she said "Yeah, that could work."
Then seeing a bright-eyed and kind kid getting killed, and ultimately witnessing another group of non-sorcerers mistreating two innocent girls finally made him take a stance. Since the twins could see curses, it made them part of the sorcerers faction in his mind, and solidified an “us and them” idea of society that consumed him 'till his last moments (and was the reason he got killed by his friend).
With him it was like a jenga tower of awful things adding on top of each other plus not having an outlet to lay his doubts out properly because he was too ashamed of his growing hatred towards non-sorcerers and possibly feeling an insuperable gap between him and Gojo. (Maybe he knew that he would not agree with him and would give him hell after he preached the whole “sorcerers are supposed to look out for the weak and stop the strong” thing to him.)
















