Every once in a while, I’m lucky enough to pick up something that feels like it came straight out of the future. This is one of those times -- sort of. I've been living with Samsung's Galaxy Fold for a week now, and I can’t understate how important this thing is. It represents a new way of THINKING about smartphones and almost single-handedly changes what we should expect from them. It's a device that is absolutely worth celebrating, but buying one? For $2,000? I’m not so sure about that.