People do live in Perth -- over two million of them ! But Perth is the second most isolated city in the world. Its nearest city of any substance is Adelaide, 2100km away (the most isolated city in the world is Honululu, 3800km from San Francisco). Perth is closer to Jakarta than it is to Sydney or Canberra.From Perth, if you want to go somewhere for a few days, you're probably going to go to Bali. Not only is it closer than Sydney, there's also no time zone difference (versus two or three hours to Sydney).