Consider outgoing president dwight d. eisenhower's 1961 farewell address, in which he forewarned of the rise of the "military-industrial complex" which had the potential for a "disastrous rise of misplaced power." eisenhower's position critiques the system.

The answer to the blank space is "the elite-mass dichotomy system".

the elite-mass dichotomy system refers to a system where some elite class people, or leaders hold the vast amount of power and control the society with that given authority.  Few institutions, political leaders or military class elders are all part of such a system.

The period that marks the paleolithic era is between the 250,000 to 10,000 years.