Who reads blogs?

Alright I will be honest! I really don't read other peoples blogs that often.
It is not that I don't value their effort or opinions, its just there is so much to read and write who has the time to read a bunch of blogs?
And how does a blog get popular is it simply by chance?
The way that you network?
The type of knowledge that you have?
And how do you know that what you write will be interesting to others?
I mean really, the internet is just this huge dark space, and its like you're screaming into a vacuum. It is a sheer miracle that anything gets noticed at all.
So, if anyone reads this blog. It's a miracle.
Truly.
I mean what are the chances that of all the blogs out there, mine was read.