Prosthetics are feats of engineering that some people opt for to live fuller lives. So what if we put that same know-how into adapting our physical world to better serve all people? Sara Hendren teaches design for disability at Olin College of Engineering, and she joins host Krys Boyd to talk about the idea that disability isn’t about a person, so much as the way a person must navigate an unhelpful world. Her new book is “What Can a Body Do: How We Meet the Built World.”