Ian Mcewan said this quote

I craved a form of naive realism. I paid special attention, I craned my readerly neck whenever a London street I knew was mentioned, or a style of frock, a real public person, even a make of car. Then, I thought, I had a measure, I could guage the quality of the writing by its accuracy, by the extent to which it aligned with my own impressions, or improved upon them. I was fortunate that most English writing of the time was in the form of undemanding social documentary. I wasn't impressed by those writers (they were spread between South and North America) who infiltrated their own pages as part of the cast, determined to remind poor reader that all the characters and even they themselves were pure inventions and the there was a difference between fiction and life. Or, to the contrary, to insist that life was a fiction anyway. Only writers, I thought, were ever in danger of confusing the two.