I can't help but wonder if there's a middle ground between people not being able to obtain credit to pursue new enterprises, and entire productive enterprises being swallowed up in the pursuit of short-term rent seeking.

That's true to a degree. But giving them free reign inventivizes the kind of behavior that gave us the 2008 financial crisis. So the commenter can be forgiven for wanting to limit that sector.

I'm banking on Space Emperor Elon. If he can form a Musk Sphere around Mars, he should be able to generate enough energy to push Deimos into Earth reasonably fast. Of course, he doesn't have to actually do it. Instead, he could extract tribute and demand we push 50M people into a volcano each year in exchange for not extincting us. In just a few decades, most all our issues resolve.