I mean yes Gege needs to elaborate further on what it is.
What we know is the following
What Gojo says is
โInfinite number of activities are forced upon the act of โlivingโโ
Infinite number of activities - manipulating time and space I guess? I can't say for certain.
I mean Sukuna being weaker than Gojo does not mean he's a fraud lol.
Throughout the entire story we've been told Gojo is the strongest. By Gojo himself, by others, by Gege too.
Using this panel because that's the correct translation.
Gege about Gojo
Gege about Gojo
Gege about Gojo
There's probably more, these are just off the top of my head right now.
Sukuna being weaker than Gojo does not mean he's a fraud. And vice-versa is true too.
With what we've been told, it makes sense to have Gojo>20f Sukuna. Or at worst them being equal or just a tiny tiny tiny edge towards Gojo. And Gojo being stronger than OG Sukuna has mostly proven to be true thus far. But again this is a manga and Gege can freely change his mind, it's his work afterall. Do I think Gojo is stronger than Heian Era Sukuna? Yes. Can I be 100 percent sure without a doubt? No. Cuz I said this is a manga first and foremost, not the real world. Anything can happen.