[vanderZwan]

> there's tens of millenia worth of reasons why they are the way they are.

Eh, not quite: all of these "reasons" are adaptations to a specific condition. Many of which only exist since recently (for example, reinforced concrete enforces certain adaptations).

Evolution is not working towards one static best solution. It is always a process of adaptation of an existing solution to the current context.

[hammock]

I don't disagree. However no one civilization would have been able to invent, for example, a skyscraper of reinforced concrete, in a vacuum, without everything that came before that.