Short spacex is the only answer I've heard but I'm wise enough to know I don't have the mentality for derivatives.
This largely being my gripe about the Trump accounts in that you're allocating funds into them that can't be touched without penalties until like 50 years later. And for most people this probably isn't even a benefit because you can lifetime gift ~$15 million so like unless you're Bezos just invest the money yourself and gift your kid whatever large value item they wanted.
That said, if somebody is say counting the days until 55 so that they can retire then it's likely they also wanted to retire pre-55. If the money is "stuck" in a 401k and so they are unwilling to retired beforehand then it probably would've been better for them to have stuck some portion of their 401k contributions into a taxable brokerage account and then retired pre-55.
But in this specific example, the guy I responded to was self-employed I'm kinda guessing their "hobby" is their job and so they kept working despite not needing to.
The biggest issues are the effort and tax implications of balancing the SpaceX short.
It was proven to be a good strategy on the SP500 [1, 2]
With 500 companies, it's work. But you can probably approximate it with a top 100.
[1] https://rodneywhitecenter.wharton.upenn.edu/wp-content/uploa...
[2] https://www.tandfonline.com/doi/full/10.1080/0015198X.2023.2...