[Haggard Hawks 🦅 on Twitter The SYNERGASTIC theory is the idea that all human language originally evolved from grunts of effort, which would have become rhythmically coordinated as groups of early humans worked together on physical tasks. Today, it is better known as the YO-HE-HO theory. Twitter](https twitter.com HaggardHawks status 1482645897372700676)
Haggard Hawks 🦅 on Twitter: "The SYNERGASTIC theory is the idea that all human language originally evolved from grunts of effort, which would have become rhythmically coordinated as groups of early humans worked together on physical tasks. Today, it is better known as the YO-HE-HO theory." / Twitter