The original meaning of "too big to fail" in the context of banks was NOT to suggest they had become impervious to failure, due to their sheer size or any other

The original meaning of "too big to fail" in the context of banks was NOT to suggest they had become impervious to failure, due to their sheer size or any other reason. The original meaning was that if one these banks did fail, it would take so many other entities down with them, that any means of rescue could be justified. They could not be permitted to fail.