I joined belatedly. Today was my second writing day. 6065 words so far, and I fully intend to hit 50k.

This is my first NaNoWriMo.
I already have three fantasy books out (which I wrote slowly compared to NaNoWriMo speed). NaNoWriMo has so far been a good way for me to kickstart a new science fiction novel.
Anyone else participating with science fiction or fantasy?