Tesla is trying to "lean startup" the Model 3. Not clear whether that was originally their intention, but the fact that they're building parts of the Model 3 by hand immediately brings to mind the kind of non-scaleable stuff that people in the software industry do at early phases of their evolution (things that are hailed as "the right thing to do). Maybe Tesla's undoing is that there's a little too much of the Silicon Valley ethos going on there.