Your example is needlessly bleak, but in general: yes, we're a social species and being able to process multiple speech streams seems obviously pretty important in many social contexts involving more than two people.
Seems doubtful to me that there will be any hardware in our species specific to processing language. It's going to be the same basic hardware as Chimps. Whatever is going on that's related to us being a social species is all software.
Seems doubtful to me that there will be any hardware in our species specific to processing language. It's going to be the same basic hardware as Chimps. Whatever is going on that's related to us being a social species is all software.