Three Types of Muslim Diversity

In his article, he thinks that the generalization of Muslim is not possible. And he confirms that the scholar should be cautions when they talk about Muslims.
It is because Muslim diverse depending on the environment around them, the nations, and beliefs they have.

He introduces three examples of the diversity of Muslims.
The first example is the difference between Sunni and Shia.
The second one is the urban-rural difference.
The third one is the difference among nations.

Because of the several elements among Muslims to identify them, we cannot simply generize them.