The Baby Name Boom

Aiden is up. Tiffany is down. Liam, Alejandro, Braedon and Jack are white hot for boys. Addison, Sawyer, Shiloh and Ava for girls. And watch out for baby Memphis.

The names we give our children say a lot about cultural hopes and dreams and history. And also, increasingly, about fads and feelings and the TV show we watched last night.

Above all, parents these days aim for a unique name — and then half the kids in preschool have it anyway. How does that happen?

This hour, On Point: The names we carry, and where the name train is headed now.Guests:

Laura Wattenberg, author of "The Baby Name Wizard" and creator of the online "Name Voyager".

Brett Pelham, psychology professor at the State University of New York at Buffalo.