Elon Reeve Musk - Chairman & Chief Executive OfficerI don't want to sort of name specific suppliers, but our biggest challenges are with the second row seat, which is, it's an amazing seat, like a sculptural work of art, but a very tricky thing to get right. The (63:53)
door actually seems to probably not be a critical path item. There are some interior components, interior trim that are possibly (64:08) on a critical path. But it's always hard to say exactly what lies in a critical path because it tends – these things tend to play schedule leapfrog and it's kind of a set of constraints that one day is this constraint, then the next day it's another constraint.
The pace of progress is really dependent on which supplier is the slowest and least lucky. So, if a supplier has unexpected challenges which can range from force majeure to
simply having to redo a design because the initial design was wrong. But when you have a complex product like the Model S with thousands of – that's dependent on thousands of suppliers, you can say that the pace of progress is determined by the thousand least lucky and slowest. But if we knew in advance which one of those would be, we would take action. So the – yeah, it's -