Instruct: Classify the given review as either positive or negative.
Query: Somewhat disturbing

I've travelled a bit in my life, but have by no means tried to keep up with trends in travel destinations. The whole contemporary craze for travelling itself has more or less passed me by. As I get older, though, I tend to get increasingly anxious about all the places in the world I haven't seen yet, and a book like this is bound to present me with many travel ideas I hadn't considered. The book's emphasis, though, presents a somewhat disturbing scenario to all potential readers. On one hand, it's good that, by making the list so long, the author is encouraging us to live for a long time, but what about those of us whose time is running out? For an untravelled person in their autumn years, 1000 places is an awful lot to be expected to get through, and attempting it could even shorten whatever time they have left. Conversely, younger, well-travelled people, who have already been to all 1000 places, will be disturbed to learn that they have nothing left to live for...