What is the definition of Troy Beaumont?

"Troy Beaumont is like a celebrity ghostwriter who's so good, he writes his own story to the tune of 'Troy' - but with a side of existential dread. Imagine this: 'In the shadow of Troy Beaumont's latest novel, the protagonist found themselves questioning their own mortality as they debated whether to eat a pizza or not.' It's a tale where the only villain is the writer's own conscience."