Those who know golden ratio $\phi$ (phi) constant, know for sure that it is an interesting constant. It is roughly $\phi=1.618034...$ . It is present almost everywhere in nature and it has many very interesting properties.
One of the properties of $\phi$ is: $$\phi^2=\phi+1$$ Is there a constant like $\phi$ which squared gives the same answer as itself plus one or is phi special? Is it a real number?
Don't downvote for no reason please.