Silicon chips age due to electromigration, which is exacerbated by small feature sizes. Chips made 20 year ago could take decades for enough migration to cause

Silicon chips age due to electromigration, which is exacerbated by small feature sizes. Chips made 20 year ago could take decades for enough migration to cause failure which is why you’ve never known or cared before. Today due to the much smaller processes we use it’s closer to a few years.