The nutrients in soil are a non-renewable resource. You can’t grow on the same piece of land and expect a bumper crop every year if you don’t use fertilizers.
No one is expecting bumper crops without any nutrient inputs. Synthetic fertilizers are not the only possible nutrient inputs.
I'm sorry but they actually are. Every time you do tillage you start from scratch. Hence you run out of nutrients much faster than if you used no till. Most of the fertilizer in tillage operations just gets washed away during rain which results in an over application of fertilizer and the runoff results in algae blooms.
Carefully considered mixed planting can remove the need for pesticides too.
Shits not hard, but trading off the "big yield now" for "yields for longer" requires long term thinking that a lot of people are terrible at.
To keep land arable in the longer term, you need to do crop/usage rotation, no-till farming, etc.
Agriculture is fun.
It’s not like we’ve known this for 8,000 years
...which results in water that's so clogged it can't support fish, aquatic arthropods and so on.
Perhaps that doesn't matter, if the river rolling past your window is the Mississippi; but in this country, our longest rivers are only 100 miles or so.
The same applies to Berlin, London, and many other places.
TfL (Transport for London) do a lot of interesting things to manage traffic (rerouting people on foot through stations in interesting ways) to manage traffic/congestion.
Its also rather heavily surveilled and policed by the British Transport Police (a fully fledged police force specifically for the UK public transport networks).