It works when where they are from is used as a counter-example. I may be jaded, but I often find people from the US say, "this would be impossible". Then it's

It works when where they are from is used as a counter-example. I may be jaded, but I often find people from the US say, "this would be impossible". Then it's often interesting to point to various places in the world where in fact, the thing is possible.