Tesla is ramping up its humanoid robot, self-driving taxi, and electric semi-truck at the same time, which is good news for people holding the stock.

• Optimus robot production jumped tenfold, to several hundred units a week.
• Robots may learn far faster than self-driving cars did, because people wearing camera headsets can generate training data cheaply and in bulk.
• Tesla's core car and energy business is weaker, with thinner profit margins and much higher spending — it now runs like a very large startup.
• Roughly two-thirds of the stock price is payment for the three new businesses that barely earn money yet.
• Nvidia is the quiet winner, since nearly every rival robot runs on its chips and software; Tesla builds its own.

Outlook: If the robot, taxi, and truck lines keep scaling, Tesla could push back above its old highs — though the market is already paying a steep price for that promise.