No nation falls entirely into either category. It is also dangerous to categorize a nation simply by the moment in time during which they were examined. The Russia of 1992 was very different front the Russia of 1990. Both democratic and authoritarian governments change over time, rendering the global mosaic uncertain and complex.

Whats the most important idea of this paragraph?

The most important idea of this paragraph is that categorizing nations as either democratic or authoritarian is not accurate or sufficient, as nations can change and evolve over time.

The most important idea of this paragraph is that categorizing nations as either democratic or authoritarian is oversimplified and misleading because governments can change over time, making the global situation uncertain and complex.

The most important idea of this paragraph is that categorizing nations into broad extremes like democratic or authoritarian can be misleading because nations can change over time, making the global mosaic of political systems uncertain and complex.