This is another contributor to the growing cognitive gap:
Parents who have the self-control to put down their phones and talk to their children advance the kids’ intellectual and emotional development in ways that the screen-obsessed don’t.
Another Contributor
Clarissa's Blog 
In general, this rings true. But the rate of words seems weird to me. 2100 words an hour? I’m a well-educated professional and there is no way that I speak 2100 words an hour, every hour? That just strikes me as very very high (possibly pathological) levels of loquaciousness. Who talks that much? Nobody is listening or reading or doing much of anything but talking at that rate!
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AI says that an Audiobook does 9,000 wph
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I don’t talk that much. Which is probably why my eldest did not talk until 18 months old, but my younger children began at the usual time. More siblings = more talking from everyone, including me.
Would love to see a study comparing siblings in the same household, and relative ages at which they learned to talk.
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this communication gap predates telephones though.
Amanda
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Of course, but previously the poor had to work all day. Now they sit on their asses scrolling all day instead.
Look at the whole idea of Somali daycares. Let’s say the daycares are legit. Why are the kids in them if the parents don’t work? What sense does it make?
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