Edit - I fixed a typo.
Language. Imagine making any kind of society without complex communication.
Tater Tots™ is a registered trademark of the Ore-Ida potato based frozen food company.
The name "tater tot" is a registered trademark of the American frozen food company Ore-Ida, but is often used as a generic term.
I don't know another term for them.
I wasn't suggesting that you change what you call them. I just like talking about tater tots.
I just like talking about tater tots.
What else do you have to say about them?
Writing. It provides a way for humans to preserve information/ideas, and also distribute them.
Radio is up there. Despite its bastardization under capitalist society, the ability to communicate instantaneously with people anywhere in the world with simple circuits, a modest amount of power and virtually zero infrastructure is remarkable.