There are so many signs now that we’re living through a bubble, and it may get much worse before it implodes.
But, I see a bubble. Electric cars aren't magic, and I'm more expect Tesla to be outflanked by the East (Toyota) and then the Germans (VW Audi Group). Whilst they may be still doing hybrids, they've got years and years of Auto building experience. Also, Musk's persona is cult of personality that make's me wonder.
That would be a sight to behold. If this happens within our lifetime, then it would be an interesting case study of a fast-track evolution from a healthy company to a stagnant behemoth.
This and the markets' reaction are absolutely part of the left side of a hype-mania bubble that will have some event(s) like that but your guess is as good as mine