[mattmaroon]

I don't think the automakers are set in their ways. Chevy acquired Cruise for a billion dollars. Waymo has partnered with Fiat Chrysler. Ford's committed $4 billion over the next few years.

Maybe Tesla's ahead of some of them. (I'm not sure they're ahead of Waymo.) But they've still not learned how to make an affordable car at scale. They're having a hard time getting to a $35k car, and estimates put the lowest Model 3 at $41k to produce. Average American car price, including trucks, is below $34k, and those are being sold at a profit.

And again, all of this is not to say that Tesla won't succeed. They probably will. What they've done is impressive. I just think there's a very good chance that they're on a long, difficult, slow ramp up to being a major car company, in which case their current share price will have been a bad investment.

Edit: also, I left out another huge risk factor: Their CEO. They have a visionary leader who is clearly overextended and shows signs of fraying to the point where he's possibly breaking laws over Twitter.