[ipnon]

This seems to be why people naturally default to sing-song when speaking to babies.

[rowyourboat]

I thought that was cultural. There are cultures that don't talk to babies at all.

[gardenhedge]

Does it explain why people do that? Are you suggesting we intrinsically know that singing to a baby is beneficial for learning?

[gumby]

If you believe that speech is a survival skill (which I would think most people believe) then anything that increases its prevalence or effectiveness would be evolutionarily selected for, right? We’re talking a 300-500+ Ky period, probably almost 2X that (depending upon the speech capabilities of our hominid ancestors), so plenty of time for evolutionary pressure to apply.

[animitronix]

Yes, some shit comes built-in.