Inferno tactics.

Taking Utopia and playing for 1-2 weeks are mentioned in different sentences :) People who just like to argue subconsciously distort the meaning of another person's words (even for themselves).

"Without demonology, you can't count on taking Utopia early.
A real rush to take it in 1-2 weeks is an expert curse." Is that how I understood it correctly – "rush" means breaking Utopia? Isn't that right? And as for just arguing – I disagree. Providing at least one piece of evidence is quite enough for me (for your post).

Added 1 minute ago

I personally took Utopia on the second week playing as Inferno! I summoned 66 demons and took the minimum! Hero: Peer. Nothing too complicated!

On the second week, 66 demons is quite possible. But not on the first.