How to get the inreverse selection of a Views query? Imagine that you can easily create a view that gives you a subset of some content on my site. However, you want the opposite view - all the content minus that subset - and that view is very hard or impossible to create. 

The question then becomes: Is it possible to invert the result/selection of a Views query?

NB! Sorting is irrelevant for this question: It's all about the returned selection of items, not the order of the items.
It is simple. Go back in your Views Settings and find Sort criteria. There you can either reversely sort bu date: Content: Post date (desc) or by alphabetic order. It depends what field you take as sorting criteria.