Best Country to Move To?

In a changing world, we don't always know what the future has in store. If you could pick anywhere in the world to move to (to live), and relocate there tomorrow - where would you go, and why?

I lived outside my birth country for 15 years and consider it overall a good experience of expanding horizons. The world changes fast tho and there are many good places, and cities (even outside of cities) coming up that provide everything you need. It depends on you tho.