The problem is with the definition of “sustainable business model.”
Could you maintain a profitable business and continue steady growth? Sure. Could you become a unicorn and IPO within the next 5 years? Unlikely.
Could you maintain a profitable business and continue steady growth? Sure. Could you become a unicorn and IPO within the next 5 years? Unlikely.
That's because the money is concentrated into a few dumb people with limited capacity to invest it. So they'll push it into a handful of companies that will destroy whatever sustainable companies that exist on the same market.