I can imagine a successful future for civilization but I don't know how to explain to normal people, without the economics understanding, that making hard choices sooner than later pays dividends in saving us from exponential lost/wasted utility. And that isn't even asking people to change behaviours for the good of everyone. It's not even the theoretical "us", it's the actual future of us that I'm trying to get people worried about.
I've been trying to think of things in a spatial-temporal relationship and what is the end of a system propelled by growth in amount and time? The corner we are approaching is one that can be driven off if not navigated correctly, specifically at the speeds which we'll be heading into it.