The video establishes the following:
1. Thomas Edison is deaf.
2. Thomas Edison wants to hear
3. Thomas Edison’s desire to hear led to the invention of the phonograph.


4. Edison is a capitalist.
5. Control over sound establishes mastery over technology and commerce.

If we associate these,

6. Edison’s desire to hear is about regaining his body.
7. Control over his body is manifested by his efforts to capture and control sound.

And if we admit a measure of madness,

8. He wanted to take over the world.