How long should a blog post be?
Two sentences?
Three?
Why not only four?
It should be no longer than it has to be.
Otherwise it becomes too long.
But how long is too long?
About as long as it takes for you to want to skip to the next post.
So let your post choose its own length.
Just let it be.
boy with a hat 
I love your writing. So it does not make any difference how many sentences. The contenu is what counts. Good day to you Vincent and thank you for your sharing.
Beautiful thoughts for all…
Brilliant!