"“Why” is language’s use for internal thought, as the cognitive glue that binds together other perceptual and information-processing cognitive systems."
"“How” is the neural implementation of the Basic Property—little understood, but recent empirical evidence suggests that this could be compatible with some “slight rewiring of the brain,” as we have put it elsewhere."
"“Who” is us—anatomically modern humans—neither chimpanzees nor gorillas nor songbirds."
"“Where” and “When” point to sometime between the first appearance of anatomically modern humans in southern Africa roughly 200,000 years ago, but prior to the last African exodus approximately 60,000 years ago (Pagani 2015)."
"Unlike some, we don’t think there’s any need here to invoke either gossip, a Pleistocene version of Google maps, or cultural evolution of an obscure kind."