Because the writer must be a participant in the scene, while he's writing it — or at least taping it, or even sketching it. Or all three. Probably the closest analogy to the ideal would be a film director/producer who writes his own scripts, does his own camera work and somehow manages to film himself in action, as the protagonist or at least a main character.
Hunter S. ThompsonJournalism, to me, is just another drug - a free ride to scenes I'd probably miss if I stayed straight.
Hunter S. Thompson