The Experts Don't Always Know What They're Talking About

So according to various child development experts, newborns don't have the cognitive capacity to engage in social smiles. Any smiles that they do exhibit are supposedly random.

I don't buy it. Fiona has been smiling at us for several days. She does it during her really alert, awake periods, and it is always a reaction to our faces and voices. The more we talk to her, the more she smiles at us. If we stop talking to her, she stares at us intently until we look back at her and then smiles some more. There's no way these smiles are an involuntary and meaningless expression on Fiona's part.

Case in point:

And again:

And more smiling:

There's just no denying it. These are pics of a happy, smiling 1-week-old.