When all possible scientific questions have been answered, WHY problems of life remain completely untouched?
Your question comes from the last few pages of Wittgenstein’s “Tractatus Logico-Philosophicus”. (How are we in the philosophy section and I’m the first one to point that out?) Wittgenstein wasn’t talking about God or about quantum mechanics, he was talking about language. After he says, “when all possible scientific questions have been answered, the problems of life remain completely untouched” he continues, “and this itself is the answer, in the vanishing of the question.” Wittgenstein believed that philosophy was an activity, specifically it is the activity of making things clearer. In the Tractatus, Wittgenstein sets out his case for the position that the only perfectly clear sentences are those that are expressed in terms of natural properties (i.e. sense-data). So he means to say that what we’ll eventually find out is that questions like, “what is the meaning of life” turn out to be meaningless questions, and when we find that out when we get clear about exactly what it is that we