So I read in a sci-fi The Day of the Triffids a professor's speech reflecting the upcoming changes in society, following the Triffids' outbreak. Although maybe not a studied sociologist, Wyndham did a good job of speaking for the sociologist. This got me reminded of a phenomenon I uncovered while pondering writing, character development, his experience, etc., namely that the in-book character may be proficient at something the author of the story is not. How do you bridge this gap, this disconnect? I find it difficult to describe vividly sth I've never experienced which the MC is experiencing. Imagination is key here, no doubt, but is imagination itself enough? I'm not a martial arts' master and so when describing combat particularities, I may miss a key aspect of combat, one that a skilled combatant would count number one in importance. I can foretell your answer; even with extensive research taken into account, would I able to describe a real-life surgeon suffering from insomnia?