writing as a man

My first tweet of the day:

My protagonist already a bit different than originally envisioned; you don't know who your people are until you start to write them.

Or at least I don't. I can make all the notes I want, brainstorm, write up elaborate backstories, pick apart their psychology, deliberately choose bits of personality from the people in my life who capture my interest and/or imagination, but until I sit down and flesh them into being through actually writing the damn novel do I start t...