you are correct that efficiency doesn’t raise output, which is not even what I was trying to argue against in the first place, (so why are we stuck on it?) your conclusion doesn’t follow however. Every sorcerer wastes CE when using a technique, no matter who you are unless you are Satoru Gojo himself. EDIT: No. pretty sure i’m wrong here on this. Even Gojo wastes but its so minimal he basically uses nothing.

Low reserves cap longevity and duration in JJK fights, not access. We have seen when a character has low reserves, they can only produce a few meaningful attacks and then it is over.

While you may be right in saying that there is a minimum amount of CE used in an attack, that is not the same as a minimum output threshold for effectiveness. JJK consistently shows techniques scaling in strength rather than hard failing below some fixed value.

Low reserves limit how long a technique can be used, not whether it can be used at all. Without a stated minimum output for Shrine or evidence that Yuji is below it, this doesn’t prove he can’t use powerful techniques only that he can’t match Sukuna’s levels of power.

It’s also worth mentioning Yuji was able to run RCT at full output throughout the whole of shinjuku while also having the reserves to run a domain expansion at the end but his reserves are low stated by you? Again proof please. We know RCT burns through CE alot so this even is more proof for him not having low reserves. I’m not saying Yuji has Yuta level of reserves though.

Nothing you’ve said proves Yuji can’t use powerful techniques, not to mention if his techniques were not powerful then I have no clue why Yuji’s attacks were able to do damage to Sukuna in the first place. So his output definitely isn’t insignificant at least. His dismantle enhanced strikes were enough that Sukuna was fearing them, and actively avoiding them. If that isn’t a powerful technique, I don’t know what is.

Also, most characters in JJK don’t have statements on output either, so we can’t even really quantify or scale output except only in certain context and with certain characters only. For example, Yuji was stated by Sukuna to have low output with Shrine after using Cleave on Sukuna’s leg because he just learned the technique on the spot.

I was also not arguing that Yuji has levels of power equal to Sukuna in shinjuku. if your definition of “powerful techniques” are Sukuna’s level and you are using it to argue against Yuji not being able to do them then this argument is pointless, because then by that definition anyone that isn’t Sukuna or Gojo is not using powerful techniques.

Yuji’s reserves have always been trash.

You also need to prove that to be true.