The "real series production" presented in the last video-clips seems to include a lot of intensive manual labor in those assembly lines. That in itself should l

The "real series production" presented in the last video-clips seems to include a lot of intensive manual labor in those assembly lines. That in itself should let you assume room for improvement. In the first video (@8:25) there is a part involving two mechanical arms and a press, all moving pretty slowly, i.e. with a lot of waiting. Why is that if the only possible occurrences in there are known and controlled? I tend to assume that the machine-only chambers were set up because of hazardous factors (making human involvement risky) than from efficiency reasons. If that is what factories today are, and considering that Musk is time-pressed to swell the number of assembled cars, it's no wonder he has hard time tolerating it.