It’d be nice to know where people are when they talk about what happens where they are.
I used to live in Cedar Rapids, Iowa. I inspected the topo map and found that Mount Mercy is the official highest point in town; this being Iowa, that isn’t very high; I didn’t notice it when I bicycled out that way.
When they built a path that passes by the landfill, I measured it as higher than Mount Mercy. We started calling it Mount Trashmore.
European countries with more people than land don’t have landfills: they recycle everything they can (which means up to 16 categories of stuff), burn the rest, ship out the tiny remainder. When we no longer have land no one wants to pay to live or work on, we’ll do the same, but right now there’s lots of empty land we’d just as soon fill with trash.
I’d gladly pay to recycle everything, but the electorate has decided otherwise most places.
Changing World Technologies in Carthage Missouri converts everything organic (in the chemical sense, which includes plastics) into diesel. It works on sewage, paper, wood, yard waste, clothes, all plastics… It recovers all the other elements, such as nitrogen, potassium, and phosphorus (suitable for fertilizer) to re-use. They even burn their own diesel to run the plant. I guess it doesn’t pay, otherwise everybody’d do it.
Once you remove all that stuff, all you have left is metals (all worth recycling), glass (grind up for potting soil, if nothing else), and ceramics (probably also grindable-up for potting soil).