Because claims of having some human settlements must be supported by other factors to sustain assumed population. Without sustainable agriculture, domestication

Because claims of having some human settlements must be supported by other factors to sustain assumed population. Without sustainable agriculture, domestication of anals, established trade routes, developed tools and what we would call 'best practices' no 'ancient settlement', leave alone 'ancient civilization' is possible. It must be a very favorable place. This logic applies to debunk nonsensical claims about inventd by pundits Tibetan kingdoms, it applies here too.