There's this saying that if you owe the bank a million dollars, you have a big problem, but if you owe the bank 100 million dollars, the bank has a big problem.

Is the same thing true for corporations? At some point the numbers are so wild the entire economy must help you succeed? I don't mean "too big to fail" exactly, more like "so big eventual success is guaranteed at all costs"

Those are the same thing. The whole point of saying "too big to fail" is to evoke the moment in the housing crash where governments largely threw most of their citizens under the bus by bailing out banks rather than homeowners for the banks' wildly irresponsible decisions. "Too big to fail" means the government steps in and bails you out, and that phrase became popular because for many it was the final nail in the coffin for their trust in government

I wonder if there is "too big for IPO". Saudi Aramco in 2019 sold shares worth $25.6 billion in IPO. Even offering just 5% of OpenAI to public would shatter that record. Well, unless public isn't actually interested in investing such huge amounts.

And if you owe the bank a hundred billon dollars the entire economy has a big problem.