I'm only making fun of "thinking like a 94 year old": There is no such thing in my opinion. ( And to be a genius you only have to work on something to the point of obsession but some may disagree )
There are many more people who are considered obsessed with something and are not considered geniuses than there are people who are considered geniuses.
An easy example is music. The world is full of professional and amateur musicians, many of who are considered obsessed and yet people considered geniuses rare, perhaps only a handful every century.