It's not trivial when they are as massively cash-flow negative as they are today. What I heard is that they are having a harder time raising money, they can't

It's not trivial when they are as massively cash-flow negative as they are today. What I heard is that they are having a harder time raising money, they can't issue more convertible bonds, and they can't go to the markets again for another secondary. They need to start collateralizing their factories and other assets to get more money to pay for their gigafactory, etc. If they hit on all cylinders they might survive, but if anything goes wrong in the next few years, they could very well topple under their debt. I heard that they have only sold about 1000 Model X's and are still working out the kinks. They needed 3 years for the Model S to be free from problems, so expect at least that much, not including the huge piece of glass used in the Model X.