She’s 2½. She took an IQ test and became Mensa’s youngest member.

Soon after their daughter Isla turned 2, Amanda and Jason McNabb started spotting strange configurations of plastic, multicolored toy letters around their house in a Louisville suburb. Next to a chair: C-H-A-I-R By the couch: S-O-F-A And near the Amazon Fire Stick remote: T-V Not even Booger escaped …