No one branch or institution can become so powerful as to control the system completely because of the separation of powers. The separation of powers is important because it provides a vital system of ‘checks and balances
He fought for independence.
The first answer is correct. Modern technology didn't make production costs higher. In fact, it made them lower. Technology had mostly positive effects on production.
The primary source of uncertainty over the limits on presidential power is that the Constitution grants the President the right to issue executive orders, which can override both Congress and the Judiciary.