> drivetrain depending on a device which is known to fail
Uh... the drive train itself is "known to fail". Everything wears out. Everything breaks. You just aren't surprised when your transmission needs rebuilding or your brakes or shocks need replacement because those are "car things" you've been conditioned are normal. Well, electromigration is just another kind of normal wear and tear to be designed into the device.
And it's the design here that was at fault, having incorrectly planned for the replacement rate. But there's absolutely nothing weird about building cars out of parts that fail over time!
Uh... the drive train itself is "known to fail". Everything wears out. Everything breaks. You just aren't surprised when your transmission needs rebuilding or your brakes or shocks need replacement because those are "car things" you've been conditioned are normal. Well, electromigration is just another kind of normal wear and tear to be designed into the device.
And it's the design here that was at fault, having incorrectly planned for the replacement rate. But there's absolutely nothing weird about building cars out of parts that fail over time!