I think it is important for the writer to take chances. To write with a very high degree of detachment ... it doesn't seem to me that one is playing it straight.
Christian Science Monitor, 1 March 1985 (Link)
I believe rather - and I know I am not alone in this - that Brookner's interview persona was anything but unrehearsed. To adapt Samuel Johnson's thoughts on the eighteenth-century familiar letter, a Brookner interview is a 'calm and deliberate performance, in the cool of leisure'.