Recursive language and modern imagination were acquired simultaneously 70,000 years ago

A genetic mutation that slowed down the development of the prefrontal cortex (PFC) in two or more children may have triggered a cascade of events leading to acquisition of recursive language and modern imagination 70,000 years ago.

source https://www.lifetechnology.com/blogs/life-technology-news-blog/recursive-language-and-modern-imagination-were-acquired-simultaneously-70-000-years-ago