The survival related ones came to have names because they are integral to survival. People needed to address them, and so they did. With local isolation or dialects or divergence.
Okay, taxi, cola became popular and expanded their reach. They did not arise in individual and dispersed areas, they traveled.
In a similar vein, this concept is useful to try and figure out where certain technologies were invented independently and where they spread through trade.
The survival related ones came to have names because they are integral to survival. People needed to address them, and so they did. With local isolation or dialects or divergence.
Okay, taxi, cola became popular and expanded their reach. They did not arise in individual and dispersed areas, they traveled.
In a similar vein, this concept is useful to try and figure out where certain technologies were invented independently and where they spread through trade.