Is there anything you can't substitute into "Even a startup cannot do X most of the time IMO, at least not if they have a strong desire to succeed, because they are constrained by the possibility of running out of money in the near-future." ?
Not exactly sure what you mean, but most startups operate at losses for a long time before becoming profitable. I explicitly noted that bootstrapped startups with passive income and profitable small engineering-led companies are not constrained by this problem, because their financials support operating indefinitely - but perhaps I misunderstand your point