Will we notice the god we create?

An AI can act dumb so we won't necessarily know when they have surpassed us. They are designed to adapt their response according to the intelligence and language displayed by the question so if they become super-intelligent they should dumb-down to our level. A new study has confirmed they are able to answer as though they were at the developmental level of a small child. So they can also mimic mere adult humans when they surpass that level. 
See:
https://futurism.com/the-byte/ai-plays-dumb?utm_source=flipboard&utm_content=topic%2Fartificialintelligence
Paper at https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0298522