How does Mahan invoke racial differences to support his arguments?

Alfred Thayer Mahan was an American naval officer who is known for his influence on sea power during 19 and early 20 centuries.

According to Mahan, sea power is highly influenced by the distribution of the populations, and their characteristics that maintain stable and efficient working ability. so, such efficiency and stability come from racial traits and native American citizens are good at it.

This thought of Mahan invokes racial differences to support his arguments.

music always has an important role in culture and societies, infact for example rock’n roll music has conditioned different areas of pop culture above all in the 60s. in the modern american society its role is different.

unfortunately many think about how some unfortunate events happened to the columbine high school shootings can be related to rock music just because the teenagers involved listened to this kind of music.

i think that we can valorize the change to take refuge in this genre of music to keep on in everyday life, teenagers are comfortable when they can listen to a song about a specific problem. realizing that someone else is living your personal drama too can them to feel less lonely nowadays.