[aristofun]

I really want to understand how can a blog post have a major impact on your life?

What kind of life should it be that it is easily changed by random opinions of some random people...

Unless it is a blog post with a password to a huge Bitcoin wallet :)

[spr3zi]

I had a lengthy response in my mind, but this attitude leads me to believe you probably won't find much value in it.

I'll just say that sometimes, someone can explain an issue or a concept in a way that really strikes you. Maybe it's a perspective on an important issue that changes how you view it, or maybe it's an idea that opens up an entirely new avenue of thought you hadn't considered.

Sometimes that random stranger can string words together to convey the right information to the right person that positively affects their life.

[aristofun]

Totally agree. For example some Paul Graham’s posts still resonate with me.

But is it “life changing”?

That is too much to attribute.

[nicbou]

Sometimes it's a subtle change of perspective, or a model that clarifies your thoughts. At the time it just feels like clever words, but the words stick, and slightly affect the course of your life.

[aristofun]

If it’s subtle - you would not be able to pinpoint it and say yes, this exact post did it, no?