> "The world has been getting better, and continues to get better."
Perhaps the tiny surface of the world you interact with now has more conveniences than before, but that is very distant from a reality where things are getting better.
Your perception depends on taking many factors for granted, not acknowledging we depend on multiple concurrent progress traps.
If you go to the supermarket and the shelves are empty, if there's no water running through your pipes, if there's no power coming from your outlets, if there's no internet connectivity, and so on, your reality bubble will be popped.
Overusing topsoil, overusing fresh water, killing all the pollinators, pumping aquifers dry, overfishing, using fossil fuels, having pollution festivals like halloween, air travel for trivial reasons, etc. We live our lives thinking the natural world will adapt to our stupid wasteful lifestyle which gets more wasteful every day. But that won't do. Everyone will have to adapt and have a lifestyle that is more sustainable, and that lifestyle will be very different to the one we have now.
Every society is 3 meals away from revolution, and that revolution is coming in our lifetimes when we finish ruining the planet for ourselves. Terraforming mars won't do shit for the political instability that will unfold as a consequence of failed harvests, water exhaustion, topsoil death, etc. War for the resources that are left is inevitable as resources become scarce.
Toxic optimism won't make things better. Only acknowledging problems instead of hiding them behind layers of abstraction will.