My feeling is that once your road network is full of steps, developing wheels isn't of much utility.
Literal path dependency.
And all design builds on previous design. If the earliest types of wheels aren't very useful without large draft animals you aren't going to waste your time developing the types of wheels that make good handcarts.
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Date: 2021-08-05 05:38 am (UTC)Literal path dependency.
And all design builds on previous design. If the earliest types of wheels aren't very useful without large draft animals you aren't going to waste your time developing the types of wheels that make good handcarts.