In my opinion, Design and User Experience is about problem solving. "Technology cannot exist for the sake of technology. It is about what are we trying to do with it". If it comes out good, we get to change the world a little bit, hopefully for the good.
A key feature of a design problem is that it may have many right answers, infintely more wrong answers. So how do we get there? Can we apply the first problem-solving techniques that we learnt ?