People think that writing is writing, but actually writing is editing. Otherwise, you're just taking notes
I truly believe that writing is a continuum--so the different genres and forms are simply stops along the same continuum. Different ideas that need to be expressed sometimes require different forms for the ideas to float better.
I read everywhere. It's like a bodily function. I don't need quiet. I write and read with the TV on. I follow the TV show while I read. TV doesn't require a lot of brainpower.
I think that most writers who are trying to write important and difficult books are in many ways putting their own humanity into question. Sometimes the journey is finding out where you stand in relationship to your own humanity and to the humanity of others.