> He is the only one who is in that position, because he is the only person who is inside his body

Tell that to everyone who has died due to following quack medicine advice.

How does your comment have any relevance? The commenter with back pain took a commendable, scientific approach. You are talking like everybody in the world is an idiot, and you alone have any intelligence.

If this is how you experience everyday life, then I suggest you seek out challenges in real life, where you actually encounter people who are on the same level of intelligence as you or higher, and you will learn some humility instead of dismissing everybody as crazy.