Introspection is the act of looking inward to examine your own thoughts, feelings, and motives. It is a personal process of self-reflection that helps you understand why you act and feel the way you do.

Pretty much everyone can benefit with some time for introspection. This is considerably easier to do if you have silence and boredom. Music, podcasts, television all hinder the practice of introspection. It takes practice though and that means being okay with silence and constantly keeping your mind on the task of examining your thoughts and feelings.

I think the poster was perhaps expressing that it doesn't look like enough people are comfortable with this process and seem to do anything they can to avoid it.