>>18077302 (OP)
This map 5000 years ago wouldn't have looked the same. Desertification has been an ongoing process. And of course these civilizations all appeared along major rivers that provided irrigation and fertile floodplains.
>>18077314
> It's a common proof why captialism is stupid and resources are all that matter.
It's the exact opposite, resources are entirely useless until you put in the work to turn them into something useful. All resources that are extracted today were already present thousands of years ago, but almost none of them were of any use to humans.
What matters for human development is always work and the efficiency of this work (productivity), not resources. That's why wealthy regions that don't rely on resource extraction can exist. If your theory was true, all wealthy regions throughout history must have had many rich resources to exploit and that's clearly not the case. Obvious examples include the Low Countries, Japan and Jiangnan.