companies seem to be veering into their own version of "too big to fail."
That's not to say these companies are economically mismanaged messes, the result of pathetic regulation, or their collapse will destroy the world economy. In fact, all are more reliable, if not far more reliable than many of these botched institutions. They're too big to fail in that they're so widespread, and have so much potential (realized and unrealized), that they're not going away – and I suspect they rely on this.