My understanding is that short positions are not merely passive; they can have a detrimental effect (in aggregate) on a company's likelihood of success. Are you really interested in harming the company (even if fairly negligibly for you as an individual) in exchange for some modicum of personal financial gain?
Sorry, I just don't get it. Assuming NASA's $18.4B budget is split evenly among 300M Americans... I'm paying ~$60/yr for NASA. I would gladly pay that to TSLA even if it didn't have "good business prospects" as a way to push forward humanity -- that it continues to have financial upside is just a bonus.
In this world, we so rarely get a chance to "vote with our dollars" in a meaningful way. The fact that some people have grandeur plans and work tirelessly to progress humanity is amazing; that others just want to naysay and profit off their crashes & burns... it boggles my mind.