(expanded version of a comment I posted on the other main thread)
I really recommend reading Elon's letter a couple of times.
Tesla Model 3 production aims for 6,000 units per week in June after upgrade in May – ~5,000 with margin of error, says Elon Musk
One way or the other, to my view, this isn't just another Tesla letter or blog that maybe moves the stock a little today and tomorrow or not.
Instead, this letter has the looks of going down as a landmark moment for Tesla, and not just the reiteration of 5K by June target.
This letter also,
-in response to criticism of missed goals Elon has said he is responsible for and needs to do better with, outlined a new Tesla approach to stating and achieving goals (in this case with production rates, establishing burst rate goals at a level higher than sustainable rate to improve the likelihood of hitting the sustainable rate goal)
-addresses profitability, acknowledging some validity in past criticisms, and clearly stating that with the move to mass market, profitability is a basic standard he has for the company, and announcing a very strong move to his direct involvement in implementing far tighter controls on spending
-in response to supply chain structure and performance (issues with which Tesla never passed the buck on as far as the ramp challenges, but, clearly we can infer were a materially contributor), outlines a move towards trying to rationalize the supply chain and remove layers of subcontractors not adding value, and raises the bar firmly for continuing to be a Tesla supplier
-says to all the anecdotal swipes at Tesla re build quality (and the broader doubt about Tesla and its products solidity they are designed to evoke), we are determined to reach a previously unimagined new standard in design and production precision (outpacing the industry by an order of magnitude).
- implicitly addressed a number of false narratives recently in the media (sustainability of the 2K rate they reached, Model 3 quality,...)
- several comments on Tesla's internal processes with the underlying theme of organizational structures and communication (meetings, acronyms...) being there to serve as tools for doing what makes sense, rather than serving as obstacles for the same.
- letter was so rich, I'm confident I missed some other significant points here.
Some risk that this letter becomes notorious in Tesla's history, but, I'm pretty confident it will turn out to be a long remembered signature moment in the company's emergence as a leader in the mass marketplace.