The Urals

Lucya loves the wilderness. She loves that her life revolves around the wilderness. She loves the fact that she is able to support herself by working as someone who is an expert in that area. But the question that Lucya is going to be faced with is this, can a single person ever know everything there is to know about a specific topic. Can Lucya, an expert in the area of wilderness topics, get to a point where she can decidedly say beyond a shadow of a doubt, something does not exist?