Earlier quoted context omitted.
> it just takes longer than expected I don't even know if anyone expects it to take the time Elon says, except Elon.
I'm not even sure Elon expects to get things done by the deadlines he states.
He calls some deadlines "aspirational", and it appears that he uses them as a motivational tool.
Every aerospace project comes in late anyway. The key thing is that SpaceX appears to be great at hitting their development budgets.