The possible future of Australia has been laid out in the government's "intergenerational report", which paints a picture of a nation that looks older and lives longer, and is paid better, but also faces a major workforce and climate challenge. The intergenerational report is a "compass" pointing to Australia's current course and not a "crystal ball", the federal treasurer says. It sets down some clear opportunities and obstacles for the country over the next 40 years, with five major forces shaping the future: an ageing population, climate change, a shift to a caring economy, fragmentation in the global order, and…