Who "Taught" them to do This? (Nobody Asks)

From 'megacities'

Reconstruction of the settlement Maidanetske associated with the Cucuteni–Trypillia culture in modern Ukraine. The culture spanned from 5050 to 2950 BC. Building planned nucleated mega-settlements like this (with the attendant external infrastructure to keep it going) was a massive innovation, no one in the world had lived like this before. An interesting feature of these settlements was that the inhabitants for some reason that we do not yet understand regularly burned down houses, but then continued inhabiting teh site, and often rebuilding on or next to the site of the destroyed structure. This actually is quite a common feature of Neolithic / Chalcolithic settlements in some regions, where they pulled down houses and built on top of them, leading to the accumulation of building remains forming tells.

 
If this were in the Near East or some other place with a population of browner skin colour, the pseudoarchaeology books would be full of "questions" about who taught the natives to do this. But because it is white Ukraine, right-in-the-centre-of-Europe, nobody in that milieu pays the slightest attention.