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. ThompsonShe was wearing the same clothes, but now she looked haggard and dirty. The delicate illusions that get us through life can only stand so much strain.
Hunter S. ThompsonAh, that we lack the courage of our romantic convictions; and thereby miss the wine of life, forgoing the very thing that makes living worthwhile.
Hunter S. Thompson