It is possible. Just do simple things and write.
But then you reach lines about $4m in sales and you are like "c'mon that just not me, right? it can't be".
I guess most of the time people have these questions in their head: - Who am I to write? I am no expert (afraid to express an opinion, share knowledge) - Whom will I teach? There are tons of people who know more.
and all that stuff.
What I am trying to say depending on current environment the person is in – it can be very hard to overcome those feelings and just start writing.
People should know that when they start writing when they start doing what they have never done – they will at some point be at the place they never been, out of that bubble where they were with discouraging peers.
Maybe that's why people invented aliases?