Experts rely on the work of others from before for their big ideas. They cite and research and build their new idea specifically on ideas of the past.
"So and so and so and so said therefore I say..."
Geniuses deliberately ignore as much as possible the ideas from before. And create from personal anecdotal experiments with life.
"I have been paying attention and I notice..."
I am a genius is the summary.
The End
QED
Means: "I know Latin so I'm cool".