Hi friends !! Please describe Why Content Optimization is important in SEO Nowadays? and how to focus on Content optimization in SEO?

Hi Friends,
SEO is actually all about content marketing. And since content writing is indispensable to any genuine content marketing effort, we can safely say that SEO is actually all about content writing. How come? I'm describing that below.

1. SEO needs strategic usage of keywords and search terms
2. Social validation can only be obtained due to quality content
3. Quality backlinks can only be obtained due to quality content
4. In order to rank your website and individual links, Google needs content
5. Content writing contributes to the "Search Task Accomplishment" factor