Welcome to Week 3, Day 16  of My Dad vs. The Algorithm. Today we are discussing the Golden Rule of Manufacturing. My dad, Ira, recently took a call from a distressed customer. They had cut 500 yards of fabric into t-shirt panels, and then  noticed a recurring knitting defect (a needle line) running through the pieces. They wanted to return the cut pieces for a refund. Ira had to give them the hard news. Ira’s Reaction: ""The fabric is always the scapegoat. The sewing machine