If a Type IV or V civilisation intervened on Earth, we would certainly believe it was nature at work, unless they decided to reveal themselves. Well, then, think they're literally divine entities.
That's for sure.
But what about Type III? Would such a civilization have enough technological advancement for us to take it for God?
I'm ruling out Type II and I civilizations as they are not advanced enough. But is this fair?
So, my question is: what's the lowest Type a civilization must be, to be taken for us as gods?