Judging by some metrics, you could justify now at the current price that Tesla is overvalued. I am long and overweight Tesla myself, but if you see no value in FSD (as Jack has stated many times) and ignore energy , you could come to that conclusion.
I value jacks knowledge and insight, but also have seen him go really far out there including his interactions with others. So he is human and not perfect. But anyhow, if I were to short something, it would be anything but Tesla. Short FCA. Short GM. Short the suppliers of auto parts that are going away. While bad things could happen and drive Tesla down, they could have another cybertruck level thing as a surprise announcement at any time as well. GM isn’t coming out with anything game changing.
I really hope he didn’t actually short Tesla. That could be problematic for him.