Except, of course, that it isn't "a dump of everything the author witnessed" without things expanded or or dropped. A big chunk of it is exposition about an al

Except, of course, that it isn't "a dump of everything the author witnessed" without things expanded or or dropped. A big chunk of it is exposition about an algorithm - and not even the one in question. When you relate events, you inevitably "engineer" them, even if only unconsciously or by your judgement of what's relevant or not. Storytelling is about how to engineer usefully and usually entertainingly, particularly to the people you're telling the story to.