No^.
Unless genius is closely tied to madness. I'm certain all great inventors, musicians, artists etc have talked to themselves at some point. There's so much "woodshedding" and isolation involved in the work it's a likely outcome for humor, "conversation" and frustration.
Also most comics will do the same
"Leading a double life.
Can it be wrong when you know that it's right?
Nowhere to hide, though we both might try.
I'm schizophrenic, and so am I."
James Young, Styx, 'Double Life'
I wonder after seeing the leaked footage of the behind the scenes princes of the universe video , was Freddie’s brief scene with lambert meant to be longer