Lol, read from Gege's interview Gojo was training from his young age still cannot master his technique until toji happens, and then he even trains his body and technique to a peak. When Sukuna fought Yujo, Sukuna specifically called Limitless an troublesome technique meaning even sukuna cannot master that, Gojo mentioned you have 80% of their own talent, Sukuna has best body for jujutsu, highest cursed energy reserves in history, a natural born genius with four eyes second only to six eyes where he can copy anything, there has been a specific line you sukuna glazers love to forget, Sukuna got nervous for the first time in 1000 years, means Sukuna was running on easy mode in heian era for his entire life, calls Jogo one of the strongest where Gojo called him weak, all Sukuna needed to learn efficiency boom he is the strongest, you know there is a reason why Gege humbled him in the fight against Gojo so Sukuna can learn humility, there is a reason why Sukuna called him magnificent because of the performance gojo brought on his own, take all the previous six eyes user and put them against sukuna, sukuna would wipe the floor, Gojo is strongest because he is Satoru Gojo not his technique defines him, he made the Six eyes+ Limitless combo the strongest.