I really don’t like the “well if you feel strongly why don’t you short” argument.
I think it is insane that Tesla is worth so much. But shorting stocks is not part of the asset allocation that meets my long term goals and needs. I can certainly believe something without wanting to bet on it.
I'd add shorting is expensive (borrowing fees or volatility premium on options) and more complex (margin/option approval etc). Plus the old adage that the market can remain irrational longer than you can remain solvent.
I think it is insane that Tesla is worth so much. But shorting stocks is not part of the asset allocation that meets my long term goals and needs. I can certainly believe something without wanting to bet on it.