Wall Street may be skeptical about Tesla’s upcoming quarters, but CEO Elon Musk made four surprising announcements that could be game-changers — if they prove true.

Tesla attributed the revenue decline to a drop in vehicle deliveries, less money from regulatory credit sales and a lower average selling price for its vehicles. Still, Musk struck an optimistic tone on Tesla’s post-earnings call and is banking on a rapid expansion of the company’s robotaxi service.