In the first days of my son’s life, during the fall of 2023, he spent much of the time when he wasn’t sleeping or eating engaged in what some cognitive scientists call “motor babbling.” His arms and ...

Days after Meagan Brazil-Sheehan’s 6-year-old son was diagnosed with leukemia, they were walking down the halls of UMass Memorial Children’s Medical Center when they ran into Robin the Robot. “Luca, ...