I'm pretty confident on TSLA's direction and the direction of EV in general, but I'd have a hard time putting faith in anyone's ability to guess the magnitude and speed of change over more than a few years out.
I think Elon said, a year or so ago, that he thought that within 10-15 years more than 1/2 of cars sold would be electric. How the heck does an analyst even being to come up with numbers in that sort of scenario? There are trillions of dollars of ICE/gas infrastructure across the globe and even if EV adoption explodes in 5 years, how could anyone make a good guess now where the bottlenecks will be and who will be hurt the most?
The ability to predict out very far is swamped by the chaos in the permutations.
Bingo. It's extremely hard to say what things will look like 10+ years from now. Though Tesla is a rare company that one can see a high probability they will have large growth opportunities in 10+ years, the shape of those opportunities is hard to call (ie what will be open in terms of future growth as an automaker, vs. grid storage, vs supplying drive trains to others, vs. TBD). As an analyst, once you've laid out a future scenario that justifies a buy rating, there's little upside, and much downside to sticking your neck out with more bullish detailed projections into the future.
Indeed, on the difficulty on calling developments 10+ years out, that remark from Musk is to me the most stunning reminder that even with his tremendous intelligence, calling such far off developments with precision correctly is very unlikely. Here's what Elon said in 2012, that now looks very improbable (as I suspect he'd now agree if asked):
"Speaking on Friday, as he was handing over the keys to the first Model S buyers, Musk said: "In 20 years more than half of new cars manufactured will be fully electric... I feel actually quite safe in that bet. That's a bet I will put money on."
According to Reuters, Musk said, "It's probably going to be in the 12- to 15-year time frame.""
Tesla CEO Elon Musk: Half Of New Cars Will Be Electric In 15-20 Years